Home / 989,728,106.60-1,365,800,964.56-549,695,308.52

Finding the Fourth Proportional to 989,728,106.60, 1,365,800,964.56 and 549,695,308.52

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Solution

The fourth proportional to 989,728,106.60, 1,365,800,964.56 and 549,695,308.52 is: 758,566,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,728,106.60 : 1,365,800,964.56 = 549,695,308.52 : x
  2. Step 2: Convert to fraction form
    989,728,106.60/1,365,800,964.56 = 549,695,308.52/x
  3. Step 3: Cross multiply
    989,728,106.60x = 1,365,800,964.56 × 549,695,308.52
  4. Step 4: Simplify right side
    989,728,106.60x = 750,774,382,581,145,344
  5. Step 5: Solve for x
    x = 750,774,382,581,145,344/989,728,106.60
  6. Step 6: Final answer
    x = 758,566,294.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.