Home / 261,923,999.40-392,885,999.10-108,519,071.40

Finding the Fourth Proportional to 261,923,999.40, 392,885,999.10 and 108,519,071.40

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Solution

The fourth proportional to 261,923,999.40, 392,885,999.10 and 108,519,071.40 is: 162,778,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,923,999.40 : 392,885,999.10 = 108,519,071.40 : x
  2. Step 2: Convert to fraction form
    261,923,999.40/392,885,999.10 = 108,519,071.40/x
  3. Step 3: Cross multiply
    261,923,999.40x = 392,885,999.10 × 108,519,071.40
  4. Step 4: Simplify right side
    261,923,999.40x = 42,635,623,788,393,240
  5. Step 5: Solve for x
    x = 42,635,623,788,393,240/261,923,999.40
  6. Step 6: Final answer
    x = 162,778,607.10

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1.5x scale

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.