Home / 853,017,830.40-1,279,526,745.60-707,615,572.80

Finding the Fourth Proportional to 853,017,830.40, 1,279,526,745.60 and 707,615,572.80

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Solution

The fourth proportional to 853,017,830.40, 1,279,526,745.60 and 707,615,572.80 is: 1,061,423,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,017,830.40 : 1,279,526,745.60 = 707,615,572.80 : x
  2. Step 2: Convert to fraction form
    853,017,830.40/1,279,526,745.60 = 707,615,572.80/x
  3. Step 3: Cross multiply
    853,017,830.40x = 1,279,526,745.60 × 707,615,572.80
  4. Step 4: Simplify right side
    853,017,830.40x = 905,413,051,000,663,808
  5. Step 5: Solve for x
    x = 905,413,051,000,663,808/853,017,830.40
  6. Step 6: Final answer
    x = 1,061,423,359.20

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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.