Home / 922,021,924.53-1,272,394,063.12-498,635,576.54

Finding the Fourth Proportional to 922,021,924.53, 1,272,394,063.12 and 498,635,576.54

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Solution

The fourth proportional to 922,021,924.53, 1,272,394,063.12 and 498,635,576.54 is: 688,119,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,021,924.53 : 1,272,394,063.12 = 498,635,576.54 : x
  2. Step 2: Convert to fraction form
    922,021,924.53/1,272,394,063.12 = 498,635,576.54/x
  3. Step 3: Cross multiply
    922,021,924.53x = 1,272,394,063.12 × 498,635,576.54
  4. Step 4: Simplify right side
    922,021,924.53x = 634,460,947,243,552,384
  5. Step 5: Solve for x
    x = 634,460,947,243,552,384/922,021,924.53
  6. Step 6: Final answer
    x = 688,119,154.61

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Double scale
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1.5x scale

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.