Home / 1,155,446,869.40-1,594,516,679.72-660,420,206.72

Finding the Fourth Proportional to 1,155,446,869.40, 1,594,516,679.72 and 660,420,206.72

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Solution

The fourth proportional to 1,155,446,869.40, 1,594,516,679.72 and 660,420,206.72 is: 911,379,885.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,446,869.40 : 1,594,516,679.72 = 660,420,206.72 : x
  2. Step 2: Convert to fraction form
    1,155,446,869.40/1,594,516,679.72 = 660,420,206.72/x
  3. Step 3: Cross multiply
    1,155,446,869.40x = 1,594,516,679.72 × 660,420,206.72
  4. Step 4: Simplify right side
    1,155,446,869.40x = 1,053,051,035,239,170,560
  5. Step 5: Solve for x
    x = 1,053,051,035,239,170,560/1,155,446,869.40
  6. Step 6: Final answer
    x = 911,379,885.24

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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.