Home / 418,748,821.02-627,832,357.80-185,452,403.94

Finding the Fourth Proportional to 418,748,821.02, 627,832,357.80 and 185,452,403.94

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Solution

The fourth proportional to 418,748,821.02, 627,832,357.80 and 185,452,403.94 is: 278,049,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,748,821.02 : 627,832,357.80 = 185,452,403.94 : x
  2. Step 2: Convert to fraction form
    418,748,821.02/627,832,357.80 = 185,452,403.94/x
  3. Step 3: Cross multiply
    418,748,821.02x = 627,832,357.80 × 185,452,403.94
  4. Step 4: Simplify right side
    418,748,821.02x = 116,433,020,025,328,192
  5. Step 5: Solve for x
    x = 116,433,020,025,328,192/418,748,821.02
  6. Step 6: Final answer
    x = 278,049,785.89

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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.