Home / 1,155,446,868.28-1,594,516,678.26-660,420,205.72

Finding the Fourth Proportional to 1,155,446,868.28, 1,594,516,678.26 and 660,420,205.72

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Solution

The fourth proportional to 1,155,446,868.28, 1,594,516,678.26 and 660,420,205.72 is: 911,379,883.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,446,868.28 : 1,594,516,678.26 = 660,420,205.72 : x
  2. Step 2: Convert to fraction form
    1,155,446,868.28/1,594,516,678.26 = 660,420,205.72/x
  3. Step 3: Cross multiply
    1,155,446,868.28x = 1,594,516,678.26 × 660,420,205.72
  4. Step 4: Simplify right side
    1,155,446,868.28x = 1,053,051,032,680,440,320
  5. Step 5: Solve for x
    x = 1,053,051,032,680,440,320/1,155,446,868.28
  6. Step 6: Final answer
    x = 911,379,883.91

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Double scale
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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.