Home / 261,675,614.40-392,513,421.60-89,347,012.80

Finding the Fourth Proportional to 261,675,614.40, 392,513,421.60 and 89,347,012.80

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Solution

The fourth proportional to 261,675,614.40, 392,513,421.60 and 89,347,012.80 is: 134,020,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,675,614.40 : 392,513,421.60 = 89,347,012.80 : x
  2. Step 2: Convert to fraction form
    261,675,614.40/392,513,421.60 = 89,347,012.80/x
  3. Step 3: Cross multiply
    261,675,614.40x = 392,513,421.60 × 89,347,012.80
  4. Step 4: Simplify right side
    261,675,614.40x = 35,069,901,703,866,996
  5. Step 5: Solve for x
    x = 35,069,901,703,866,996/261,675,614.40
  6. Step 6: Final answer
    x = 134,020,519.20

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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.