Home / 31,853,811.16-47,780,887.40-7,919,283.16

Finding the Fourth Proportional to 31,853,811.16, 47,780,887.40 and 7,919,283.16

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Solution

The fourth proportional to 31,853,811.16, 47,780,887.40 and 7,919,283.16 is: 11,878,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,853,811.16 : 47,780,887.40 = 7,919,283.16 : x
  2. Step 2: Convert to fraction form
    31,853,811.16/47,780,887.40 = 7,919,283.16/x
  3. Step 3: Cross multiply
    31,853,811.16x = 47,780,887.40 × 7,919,283.16
  4. Step 4: Simplify right side
    31,853,811.16x = 378,390,376,956,676.19
  5. Step 5: Solve for x
    x = 378,390,376,956,676.19/31,853,811.16
  6. Step 6: Final answer
    x = 11,878,967.17

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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.