Home / 870,912,074.40-1,306,368,111.60-804,399,280.80

Finding the Fourth Proportional to 870,912,074.40, 1,306,368,111.60 and 804,399,280.80

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Solution

The fourth proportional to 870,912,074.40, 1,306,368,111.60 and 804,399,280.80 is: 1,206,598,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,074.40 : 1,306,368,111.60 = 804,399,280.80 : x
  2. Step 2: Convert to fraction form
    870,912,074.40/1,306,368,111.60 = 804,399,280.80/x
  3. Step 3: Cross multiply
    870,912,074.40x = 1,306,368,111.60 × 804,399,280.80
  4. Step 4: Simplify right side
    870,912,074.40x = 1,050,841,569,431,094,016
  5. Step 5: Solve for x
    x = 1,050,841,569,431,094,016/870,912,074.40
  6. Step 6: Final answer
    x = 1,206,598,921.20

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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.