Home / 400,453,587.60-552,681,937.44-289,304,036.88

Finding the Fourth Proportional to 400,453,587.60, 552,681,937.44 and 289,304,036.88

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Solution

The fourth proportional to 400,453,587.60, 552,681,937.44 and 289,304,036.88 is: 399,280,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,453,587.60 : 552,681,937.44 = 289,304,036.88 : x
  2. Step 2: Convert to fraction form
    400,453,587.60/552,681,937.44 = 289,304,036.88/x
  3. Step 3: Cross multiply
    400,453,587.60x = 552,681,937.44 × 289,304,036.88
  4. Step 4: Simplify right side
    400,453,587.60x = 159,893,115,612,051,616
  5. Step 5: Solve for x
    x = 159,893,115,612,051,616/400,453,587.60
  6. Step 6: Final answer
    x = 399,280,017.87

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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.