Home / 31,853,807.16-47,780,881.38-7,919,279.16

Finding the Fourth Proportional to 31,853,807.16, 47,780,881.38 and 7,919,279.16

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Solution

The fourth proportional to 31,853,807.16, 47,780,881.38 and 7,919,279.16 is: 11,878,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,853,807.16 : 47,780,881.38 = 7,919,279.16 : x
  2. Step 2: Convert to fraction form
    31,853,807.16/47,780,881.38 = 7,919,279.16/x
  3. Step 3: Cross multiply
    31,853,807.16x = 47,780,881.38 × 7,919,279.16
  4. Step 4: Simplify right side
    31,853,807.16x = 378,390,138,159,066.06
  5. Step 5: Solve for x
    x = 378,390,138,159,066.06/31,853,807.16
  6. Step 6: Final answer
    x = 11,878,961.16

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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.