Home / 977,132,721.60-1,465,911,658.80-321,972,256.80

Finding the Fourth Proportional to 977,132,721.60, 1,465,911,658.80 and 321,972,256.80

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Solution

The fourth proportional to 977,132,721.60, 1,465,911,658.80 and 321,972,256.80 is: 483,028,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,132,721.60 : 1,465,911,658.80 = 321,972,256.80 : x
  2. Step 2: Convert to fraction form
    977,132,721.60/1,465,911,658.80 = 321,972,256.80/x
  3. Step 3: Cross multiply
    977,132,721.60x = 1,465,911,658.80 × 321,972,256.80
  4. Step 4: Simplify right side
    977,132,721.60x = 471,982,885,053,267,584
  5. Step 5: Solve for x
    x = 471,982,885,053,267,584/977,132,721.60
  6. Step 6: Final answer
    x = 483,028,430.65

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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.