Home / 649,032,909.72-895,974,262.29-434,820,403.68

Finding the Fourth Proportional to 649,032,909.72, 895,974,262.29 and 434,820,403.68

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Solution

The fourth proportional to 649,032,909.72, 895,974,262.29 and 434,820,403.68 is: 600,259,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,032,909.72 : 895,974,262.29 = 434,820,403.68 : x
  2. Step 2: Convert to fraction form
    649,032,909.72/895,974,262.29 = 434,820,403.68/x
  3. Step 3: Cross multiply
    649,032,909.72x = 895,974,262.29 × 434,820,403.68
  4. Step 4: Simplify right side
    649,032,909.72x = 389,587,890,415,827,968
  5. Step 5: Solve for x
    x = 389,587,890,415,827,968/649,032,909.72
  6. Step 6: Final answer
    x = 600,259,069.43

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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.