Home / 922,021,926.04-1,272,394,065.20-498,635,578.04

Finding the Fourth Proportional to 922,021,926.04, 1,272,394,065.20 and 498,635,578.04

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Solution

The fourth proportional to 922,021,926.04, 1,272,394,065.20 and 498,635,578.04 is: 688,119,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,021,926.04 : 1,272,394,065.20 = 498,635,578.04 : x
  2. Step 2: Convert to fraction form
    922,021,926.04/1,272,394,065.20 = 498,635,578.04/x
  3. Step 3: Cross multiply
    922,021,926.04x = 1,272,394,065.20 × 498,635,578.04
  4. Step 4: Simplify right side
    922,021,926.04x = 634,460,950,193,174,272
  5. Step 5: Solve for x
    x = 634,460,950,193,174,272/922,021,926.04
  6. Step 6: Final answer
    x = 688,119,156.69

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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.