Home / 1,289,681,909.76-1,933,377,484.80-502,553,318.40

Finding the Fourth Proportional to 1,289,681,909.76, 1,933,377,484.80 and 502,553,318.40

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Solution

The fourth proportional to 1,289,681,909.76, 1,933,377,484.80 and 502,553,318.40 is: 753,383,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,681,909.76 : 1,933,377,484.80 = 502,553,318.40 : x
  2. Step 2: Convert to fraction form
    1,289,681,909.76/1,933,377,484.80 = 502,553,318.40/x
  3. Step 3: Cross multiply
    1,289,681,909.76x = 1,933,377,484.80 × 502,553,318.40
  4. Step 4: Simplify right side
    1,289,681,909.76x = 971,625,270,706,085,504
  5. Step 5: Solve for x
    x = 971,625,270,706,085,504/1,289,681,909.76
  6. Step 6: Final answer
    x = 753,383,654.80

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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.