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Finding the Third Proportional to 69,964,440 and 153,407,280

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Solution

The third proportional to 69,964,440 and 153,407,280 is: 336,367,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,964,440 : 153,407,280 = 153,407,280 : x
  2. Step 2: Convert to fraction form
    69,964,440/153,407,280 = 153,407,280/x
  3. Step 3: Cross multiply
    69,964,440x = 153,407,280 × 153,407,280
  4. Step 4: Simplify right side
    69,964,440x = 23,533,793,556,998,400
  5. Step 5: Solve for x
    x = 23,533,793,556,998,400/69,964,440
  6. Step 6: Final answer
    x = 336,367,925.72

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.