Home / 514,691,561.49-710,281,548.05-279,742,151.49

Finding the Fourth Proportional to 514,691,561.49, 710,281,548.05 and 279,742,151.49

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Solution

The fourth proportional to 514,691,561.49, 710,281,548.05 and 279,742,151.49 is: 386,048,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,691,561.49 : 710,281,548.05 = 279,742,151.49 : x
  2. Step 2: Convert to fraction form
    514,691,561.49/710,281,548.05 = 279,742,151.49/x
  3. Step 3: Cross multiply
    514,691,561.49x = 710,281,548.05 × 279,742,151.49
  4. Step 4: Simplify right side
    514,691,561.49x = 198,695,688,413,756,096
  5. Step 5: Solve for x
    x = 198,695,688,413,756,096/514,691,561.49
  6. Step 6: Final answer
    x = 386,048,078.66

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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.