Home / 128,862,613.22-177,830,435.25-70,915,861.22

Finding the Fourth Proportional to 128,862,613.22, 177,830,435.25 and 70,915,861.22

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Solution

The fourth proportional to 128,862,613.22, 177,830,435.25 and 70,915,861.22 is: 97,863,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862,613.22 : 177,830,435.25 = 70,915,861.22 : x
  2. Step 2: Convert to fraction form
    128,862,613.22/177,830,435.25 = 70,915,861.22/x
  3. Step 3: Cross multiply
    128,862,613.22x = 177,830,435.25 × 70,915,861.22
  4. Step 4: Simplify right side
    128,862,613.22x = 12,610,998,466,881,196
  5. Step 5: Solve for x
    x = 12,610,998,466,881,196/128,862,613.22
  6. Step 6: Final answer
    x = 97,863,904.45

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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.