Home / 78,035,044.40-107,686,916.28-43,226,972.72

Finding the Fourth Proportional to 78,035,044.40, 107,686,916.28 and 43,226,972.72

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Solution

The fourth proportional to 78,035,044.40, 107,686,916.28 and 43,226,972.72 is: 59,652,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035,044.40 : 107,686,916.28 = 43,226,972.72 : x
  2. Step 2: Convert to fraction form
    78,035,044.40/107,686,916.28 = 43,226,972.72/x
  3. Step 3: Cross multiply
    78,035,044.40x = 107,686,916.28 × 43,226,972.72
  4. Step 4: Simplify right side
    78,035,044.40x = 4,654,979,392,336,484
  5. Step 5: Solve for x
    x = 4,654,979,392,336,484/78,035,044.40
  6. Step 6: Final answer
    x = 59,652,421.91

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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.