Home / 860,832,139.20-1,291,248,208.80-794,319,345.60

Finding the Fourth Proportional to 860,832,139.20, 1,291,248,208.80 and 794,319,345.60

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Solution

The fourth proportional to 860,832,139.20, 1,291,248,208.80 and 794,319,345.60 is: 1,191,479,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,832,139.20 : 1,291,248,208.80 = 794,319,345.60 : x
  2. Step 2: Convert to fraction form
    860,832,139.20/1,291,248,208.80 = 794,319,345.60/x
  3. Step 3: Cross multiply
    860,832,139.20x = 1,291,248,208.80 × 794,319,345.60
  4. Step 4: Simplify right side
    860,832,139.20x = 1,025,663,432,221,188,096
  5. Step 5: Solve for x
    x = 1,025,663,432,221,188,096/860,832,139.20
  6. Step 6: Final answer
    x = 1,191,479,018.40

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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.