Home / 438,620,491.80-657,930,737.70-180,021,301.20

Finding the Fourth Proportional to 438,620,491.80, 657,930,737.70 and 180,021,301.20

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Solution

The fourth proportional to 438,620,491.80, 657,930,737.70 and 180,021,301.20 is: 270,031,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,620,491.80 : 657,930,737.70 = 180,021,301.20 : x
  2. Step 2: Convert to fraction form
    438,620,491.80/657,930,737.70 = 180,021,301.20/x
  3. Step 3: Cross multiply
    438,620,491.80x = 657,930,737.70 × 180,021,301.20
  4. Step 4: Simplify right side
    438,620,491.80x = 118,441,547,500,229,888
  5. Step 5: Solve for x
    x = 118,441,547,500,229,888/438,620,491.80
  6. Step 6: Final answer
    x = 270,031,951.80

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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.