Home / 1,299,229,221.50-1,948,065,541.94-413,531,980.10

Finding the Fourth Proportional to 1,299,229,221.50, 1,948,065,541.94 and 413,531,980.10

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Solution

The fourth proportional to 1,299,229,221.50, 1,948,065,541.94 and 413,531,980.10 is: 620,050,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,229,221.50 : 1,948,065,541.94 = 413,531,980.10 : x
  2. Step 2: Convert to fraction form
    1,299,229,221.50/1,948,065,541.94 = 413,531,980.10/x
  3. Step 3: Cross multiply
    1,299,229,221.50x = 1,948,065,541.94 × 413,531,980.10
  4. Step 4: Simplify right side
    1,299,229,221.50x = 805,587,400,923,027,840
  5. Step 5: Solve for x
    x = 805,587,400,923,027,840/1,299,229,221.50
  6. Step 6: Final answer
    x = 620,050,247.94

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Double scale
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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.