Home / 157,470,708.60-236,206,062.90-138,763,985.40

Finding the Fourth Proportional to 157,470,708.60, 236,206,062.90 and 138,763,985.40

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Solution

The fourth proportional to 157,470,708.60, 236,206,062.90 and 138,763,985.40 is: 208,145,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470,708.60 : 236,206,062.90 = 138,763,985.40 : x
  2. Step 2: Convert to fraction form
    157,470,708.60/236,206,062.90 = 138,763,985.40/x
  3. Step 3: Cross multiply
    157,470,708.60x = 236,206,062.90 × 138,763,985.40
  4. Step 4: Simplify right side
    157,470,708.60x = 32,776,894,663,647,084
  5. Step 5: Solve for x
    x = 32,776,894,663,647,084/157,470,708.60
  6. Step 6: Final answer
    x = 208,145,978.10

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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.