Home / 90,867,730.60-136,348,835.10-39,754,916.20

Finding the Fourth Proportional to 90,867,730.60, 136,348,835.10 and 39,754,916.20

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Solution

The fourth proportional to 90,867,730.60, 136,348,835.10 and 39,754,916.20 is: 59,653,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867,730.60 : 136,348,835.10 = 39,754,916.20 : x
  2. Step 2: Convert to fraction form
    90,867,730.60/136,348,835.10 = 39,754,916.20/x
  3. Step 3: Cross multiply
    90,867,730.60x = 136,348,835.10 × 39,754,916.20
  4. Step 4: Simplify right side
    90,867,730.60x = 5,420,536,513,368,119
  5. Step 5: Solve for x
    x = 5,420,536,513,368,119/90,867,730.60
  6. Step 6: Final answer
    x = 59,653,041.60

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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.