Home / 99,805,640.40-149,708,460.60-56,658,171.60

Finding the Fourth Proportional to 99,805,640.40, 149,708,460.60 and 56,658,171.60

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Solution

The fourth proportional to 99,805,640.40, 149,708,460.60 and 56,658,171.60 is: 84,987,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,805,640.40 : 149,708,460.60 = 56,658,171.60 : x
  2. Step 2: Convert to fraction form
    99,805,640.40/149,708,460.60 = 56,658,171.60/x
  3. Step 3: Cross multiply
    99,805,640.40x = 149,708,460.60 × 56,658,171.60
  4. Step 4: Simplify right side
    99,805,640.40x = 8,482,207,650,646,639
  5. Step 5: Solve for x
    x = 8,482,207,650,646,639/99,805,640.40
  6. Step 6: Final answer
    x = 84,987,257.40

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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.