Home / 84,989,342.40-127,484,013.60-66,495,195.60

Finding the Fourth Proportional to 84,989,342.40, 127,484,013.60 and 66,495,195.60

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Solution

The fourth proportional to 84,989,342.40, 127,484,013.60 and 66,495,195.60 is: 99,742,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,342.40 : 127,484,013.60 = 66,495,195.60 : x
  2. Step 2: Convert to fraction form
    84,989,342.40/127,484,013.60 = 66,495,195.60/x
  3. Step 3: Cross multiply
    84,989,342.40x = 127,484,013.60 × 66,495,195.60
  4. Step 4: Simplify right side
    84,989,342.40x = 8,477,074,420,205,060
  5. Step 5: Solve for x
    x = 8,477,074,420,205,060/84,989,342.40
  6. Step 6: Final answer
    x = 99,742,793.40

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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.