Home / 149,448,931.16-206,234,848.32-87,610,456.40

Finding the Fourth Proportional to 149,448,931.16, 206,234,848.32 and 87,610,456.40

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Solution

The fourth proportional to 149,448,931.16, 206,234,848.32 and 87,610,456.40 is: 120,899,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,448,931.16 : 206,234,848.32 = 87,610,456.40 : x
  2. Step 2: Convert to fraction form
    149,448,931.16/206,234,848.32 = 87,610,456.40/x
  3. Step 3: Cross multiply
    149,448,931.16x = 206,234,848.32 × 87,610,456.40
  4. Step 4: Simplify right side
    149,448,931.16x = 18,068,329,186,899,972
  5. Step 5: Solve for x
    x = 18,068,329,186,899,972/149,448,931.16
  6. Step 6: Final answer
    x = 120,899,688.25

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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.