Home / 90,699,501,665.60-136,049,252,498.40-84,894,748,769.60

Finding the Fourth Proportional to 90,699,501,665.60, 136,049,252,498.40 and 84,894,748,769.60

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Solution

The fourth proportional to 90,699,501,665.60, 136,049,252,498.40 and 84,894,748,769.60 is: 127,342,123,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,501,665.60 : 136,049,252,498.40 = 84,894,748,769.60 : x
  2. Step 2: Convert to fraction form
    90,699,501,665.60/136,049,252,498.40 = 84,894,748,769.60/x
  3. Step 3: Cross multiply
    90,699,501,665.60x = 136,049,252,498.40 × 84,894,748,769.60
  4. Step 4: Simplify right side
    90,699,501,665.60x = 11,549,867,111,143,543,144,448
  5. Step 5: Solve for x
    x = 11,549,867,111,143,543,144,448/90,699,501,665.60
  6. Step 6: Final answer
    x = 127,342,123,154.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.