Home / 78,148,171.60-107,827,207.44-45,101,398.72

Finding the Fourth Proportional to 78,148,171.60, 107,827,207.44 and 45,101,398.72

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Solution

The fourth proportional to 78,148,171.60, 107,827,207.44 and 45,101,398.72 is: 62,229,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,148,171.60 : 107,827,207.44 = 45,101,398.72 : x
  2. Step 2: Convert to fraction form
    78,148,171.60/107,827,207.44 = 45,101,398.72/x
  3. Step 3: Cross multiply
    78,148,171.60x = 107,827,207.44 × 45,101,398.72
  4. Step 4: Simplify right side
    78,148,171.60x = 4,863,157,875,615,590
  5. Step 5: Solve for x
    x = 4,863,157,875,615,590/78,148,171.60
  6. Step 6: Final answer
    x = 62,229,963.62

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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.