Home / 1,225,569,091.20-1,691,283,042.72-668,652,515.52

Finding the Fourth Proportional to 1,225,569,091.20, 1,691,283,042.72 and 668,652,515.52

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Solution

The fourth proportional to 1,225,569,091.20, 1,691,283,042.72 and 668,652,515.52 is: 922,739,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,569,091.20 : 1,691,283,042.72 = 668,652,515.52 : x
  2. Step 2: Convert to fraction form
    1,225,569,091.20/1,691,283,042.72 = 668,652,515.52/x
  3. Step 3: Cross multiply
    1,225,569,091.20x = 1,691,283,042.72 × 668,652,515.52
  4. Step 4: Simplify right side
    1,225,569,091.20x = 1,130,880,660,971,047,552
  5. Step 5: Solve for x
    x = 1,130,880,660,971,047,552/1,225,569,091.20
  6. Step 6: Final answer
    x = 922,739,214.86

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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.