Home / 128,862,626.60-177,830,454.02-70,915,874.60

Finding the Fourth Proportional to 128,862,626.60, 177,830,454.02 and 70,915,874.60

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Solution

The fourth proportional to 128,862,626.60, 177,830,454.02 and 70,915,874.60 is: 97,863,923.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862,626.60 : 177,830,454.02 = 70,915,874.60 : x
  2. Step 2: Convert to fraction form
    128,862,626.60/177,830,454.02 = 70,915,874.60/x
  3. Step 3: Cross multiply
    128,862,626.60x = 177,830,454.02 × 70,915,874.60
  4. Step 4: Simplify right side
    128,862,626.60x = 12,611,002,177,343,386
  5. Step 5: Solve for x
    x = 12,611,002,177,343,386/128,862,626.60
  6. Step 6: Final answer
    x = 97,863,923.08

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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.