Home / 103,392,005.40-155,088,008.10-84,260,129.40

Finding the Fourth Proportional to 103,392,005.40, 155,088,008.10 and 84,260,129.40

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Solution

The fourth proportional to 103,392,005.40, 155,088,008.10 and 84,260,129.40 is: 126,390,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,392,005.40 : 155,088,008.10 = 84,260,129.40 : x
  2. Step 2: Convert to fraction form
    103,392,005.40/155,088,008.10 = 84,260,129.40/x
  3. Step 3: Cross multiply
    103,392,005.40x = 155,088,008.10 × 84,260,129.40
  4. Step 4: Simplify right side
    103,392,005.40x = 13,067,735,630,894,248
  5. Step 5: Solve for x
    x = 13,067,735,630,894,248/103,392,005.40
  6. Step 6: Final answer
    x = 126,390,194.10

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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.