Home / 870,912,068.40-1,306,368,102.60-739,398,135.60

Finding the Fourth Proportional to 870,912,068.40, 1,306,368,102.60 and 739,398,135.60

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Solution

The fourth proportional to 870,912,068.40, 1,306,368,102.60 and 739,398,135.60 is: 1,109,097,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,068.40 : 1,306,368,102.60 = 739,398,135.60 : x
  2. Step 2: Convert to fraction form
    870,912,068.40/1,306,368,102.60 = 739,398,135.60/x
  3. Step 3: Cross multiply
    870,912,068.40x = 1,306,368,102.60 × 739,398,135.60
  4. Step 4: Simplify right side
    870,912,068.40x = 965,926,139,469,749,504
  5. Step 5: Solve for x
    x = 965,926,139,469,749,504/870,912,068.40
  6. Step 6: Final answer
    x = 1,109,097,203.40

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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.