Home / 261,930,830.40-392,896,245.60-108,525,902.40

Finding the Fourth Proportional to 261,930,830.40, 392,896,245.60 and 108,525,902.40

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Solution

The fourth proportional to 261,930,830.40, 392,896,245.60 and 108,525,902.40 is: 162,788,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,930,830.40 : 392,896,245.60 = 108,525,902.40 : x
  2. Step 2: Convert to fraction form
    261,930,830.40/392,896,245.60 = 108,525,902.40/x
  3. Step 3: Cross multiply
    261,930,830.40x = 392,896,245.60 × 108,525,902.40
  4. Step 4: Simplify right side
    261,930,830.40x = 42,639,419,603,312,032
  5. Step 5: Solve for x
    x = 42,639,419,603,312,032/261,930,830.40
  6. Step 6: Final answer
    x = 162,788,853.60

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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.