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Finding the Fourth Proportional to 359,866,953.56, 539,800,430.45 and 87,237,720.56

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Solution

The fourth proportional to 359,866,953.56, 539,800,430.45 and 87,237,720.56 is: 130,856,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,866,953.56 : 539,800,430.45 = 87,237,720.56 : x
  2. Step 2: Convert to fraction form
    359,866,953.56/539,800,430.45 = 87,237,720.56/x
  3. Step 3: Cross multiply
    359,866,953.56x = 539,800,430.45 × 87,237,720.56
  4. Step 4: Simplify right side
    359,866,953.56x = 47,090,959,110,678,136
  5. Step 5: Solve for x
    x = 47,090,959,110,678,136/359,866,953.56
  6. Step 6: Final answer
    x = 130,856,580.87

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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.