Home / 155,973,484.44-215,250,128.73-86,358,861.45

Finding the Fourth Proportional to 155,973,484.44, 215,250,128.73 and 86,358,861.45

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Solution

The fourth proportional to 155,973,484.44, 215,250,128.73 and 86,358,861.45 is: 119,178,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,973,484.44 : 215,250,128.73 = 86,358,861.45 : x
  2. Step 2: Convert to fraction form
    155,973,484.44/215,250,128.73 = 86,358,861.45/x
  3. Step 3: Cross multiply
    155,973,484.44x = 215,250,128.73 × 86,358,861.45
  4. Step 4: Simplify right side
    155,973,484.44x = 18,588,756,044,088,736
  5. Step 5: Solve for x
    x = 18,588,756,044,088,736/155,973,484.44
  6. Step 6: Final answer
    x = 119,178,949.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.