Home / 99,640,877.40-149,461,316.10-54,291,245.40

Finding the Fourth Proportional to 99,640,877.40, 149,461,316.10 and 54,291,245.40

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Solution

The fourth proportional to 99,640,877.40, 149,461,316.10 and 54,291,245.40 is: 81,436,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,877.40 : 149,461,316.10 = 54,291,245.40 : x
  2. Step 2: Convert to fraction form
    99,640,877.40/149,461,316.10 = 54,291,245.40/x
  3. Step 3: Cross multiply
    99,640,877.40x = 149,461,316.10 × 54,291,245.40
  4. Step 4: Simplify right side
    99,640,877.40x = 8,114,440,990,192,070
  5. Step 5: Solve for x
    x = 8,114,440,990,192,070/99,640,877.40
  6. Step 6: Final answer
    x = 81,436,868.10

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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.