Home / 1,398,816,076.40-2,098,224,114.60-429,341,721.20

Finding the Fourth Proportional to 1,398,816,076.40, 2,098,224,114.60 and 429,341,721.20

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Solution

The fourth proportional to 1,398,816,076.40, 2,098,224,114.60 and 429,341,721.20 is: 644,012,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,816,076.40 : 2,098,224,114.60 = 429,341,721.20 : x
  2. Step 2: Convert to fraction form
    1,398,816,076.40/2,098,224,114.60 = 429,341,721.20/x
  3. Step 3: Cross multiply
    1,398,816,076.40x = 2,098,224,114.60 × 429,341,721.20
  4. Step 4: Simplify right side
    1,398,816,076.40x = 900,855,152,825,709,952
  5. Step 5: Solve for x
    x = 900,855,152,825,709,952/1,398,816,076.40
  6. Step 6: Final answer
    x = 644,012,581.80

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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.