Home / 115,912,312.40-173,868,468.60-81,900,088.40

Finding the Fourth Proportional to 115,912,312.40, 173,868,468.60 and 81,900,088.40

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Solution

The fourth proportional to 115,912,312.40, 173,868,468.60 and 81,900,088.40 is: 122,850,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,912,312.40 : 173,868,468.60 = 81,900,088.40 : x
  2. Step 2: Convert to fraction form
    115,912,312.40/173,868,468.60 = 81,900,088.40/x
  3. Step 3: Cross multiply
    115,912,312.40x = 173,868,468.60 × 81,900,088.40
  4. Step 4: Simplify right side
    115,912,312.40x = 14,239,842,948,312,624
  5. Step 5: Solve for x
    x = 14,239,842,948,312,624/115,912,312.40
  6. Step 6: Final answer
    x = 122,850,132.60

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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.