Home / 438,055,658.40-657,083,487.60-265,727,056.80

Finding the Fourth Proportional to 438,055,658.40, 657,083,487.60 and 265,727,056.80

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Solution

The fourth proportional to 438,055,658.40, 657,083,487.60 and 265,727,056.80 is: 398,590,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,055,658.40 : 657,083,487.60 = 265,727,056.80 : x
  2. Step 2: Convert to fraction form
    438,055,658.40/657,083,487.60 = 265,727,056.80/x
  3. Step 3: Cross multiply
    438,055,658.40x = 657,083,487.60 × 265,727,056.80
  4. Step 4: Simplify right side
    438,055,658.40x = 174,604,861,231,827,296
  5. Step 5: Solve for x
    x = 174,604,861,231,827,296/438,055,658.40
  6. Step 6: Final answer
    x = 398,590,585.20

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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.