Home / 402,984,715.20-604,477,072.80-147,649,905.60

Finding the Fourth Proportional to 402,984,715.20, 604,477,072.80 and 147,649,905.60

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Solution

The fourth proportional to 402,984,715.20, 604,477,072.80 and 147,649,905.60 is: 221,474,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,984,715.20 : 604,477,072.80 = 147,649,905.60 : x
  2. Step 2: Convert to fraction form
    402,984,715.20/604,477,072.80 = 147,649,905.60/x
  3. Step 3: Cross multiply
    402,984,715.20x = 604,477,072.80 × 147,649,905.60
  4. Step 4: Simplify right side
    402,984,715.20x = 89,250,982,736,284,320
  5. Step 5: Solve for x
    x = 89,250,982,736,284,320/402,984,715.20
  6. Step 6: Final answer
    x = 221,474,858.40

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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.