Home / 1,119,780,108.60-1,679,670,162.90-708,610,111.80

Finding the Fourth Proportional to 1,119,780,108.60, 1,679,670,162.90 and 708,610,111.80

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Solution

The fourth proportional to 1,119,780,108.60, 1,679,670,162.90 and 708,610,111.80 is: 1,062,915,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,780,108.60 : 1,679,670,162.90 = 708,610,111.80 : x
  2. Step 2: Convert to fraction form
    1,119,780,108.60/1,679,670,162.90 = 708,610,111.80/x
  3. Step 3: Cross multiply
    1,119,780,108.60x = 1,679,670,162.90 × 708,610,111.80
  4. Step 4: Simplify right side
    1,119,780,108.60x = 1,190,231,261,919,693,312
  5. Step 5: Solve for x
    x = 1,190,231,261,919,693,312/1,119,780,108.60
  6. Step 6: Final answer
    x = 1,062,915,167.70

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Double scale
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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.