Home / 1,431,365,646.42-2,146,516,853.67-498,448,920.78

Finding the Fourth Proportional to 1,431,365,646.42, 2,146,516,853.67 and 498,448,920.78

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Solution

The fourth proportional to 1,431,365,646.42, 2,146,516,853.67 and 498,448,920.78 is: 747,488,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,365,646.42 : 2,146,516,853.67 = 498,448,920.78 : x
  2. Step 2: Convert to fraction form
    1,431,365,646.42/2,146,516,853.67 = 498,448,920.78/x
  3. Step 3: Cross multiply
    1,431,365,646.42x = 2,146,516,853.67 × 498,448,920.78
  4. Step 4: Simplify right side
    1,431,365,646.42x = 1,069,929,009,147,892,608
  5. Step 5: Solve for x
    x = 1,069,929,009,147,892,608/1,431,365,646.42
  6. Step 6: Final answer
    x = 747,488,254.89

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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.