Home / 872,207,986.78-1,308,565,296.72-281,985,624.52

Finding the Fourth Proportional to 872,207,986.78, 1,308,565,296.72 and 281,985,624.52

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Solution

The fourth proportional to 872,207,986.78, 1,308,565,296.72 and 281,985,624.52 is: 423,060,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,207,986.78 : 1,308,565,296.72 = 281,985,624.52 : x
  2. Step 2: Convert to fraction form
    872,207,986.78/1,308,565,296.72 = 281,985,624.52/x
  3. Step 3: Cross multiply
    872,207,986.78x = 1,308,565,296.72 × 281,985,624.52
  4. Step 4: Simplify right side
    872,207,986.78x = 368,996,602,420,788,288
  5. Step 5: Solve for x
    x = 368,996,602,420,788,288/872,207,986.78
  6. Step 6: Final answer
    x = 423,060,334.25

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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.