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Finding the Third Proportional to 66,249,480 and 144,781,044

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Solution

The third proportional to 66,249,480 and 144,781,044 is: 316,403,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249,480 : 144,781,044 = 144,781,044 : x
  2. Step 2: Convert to fraction form
    66,249,480/144,781,044 = 144,781,044/x
  3. Step 3: Cross multiply
    66,249,480x = 144,781,044 × 144,781,044
  4. Step 4: Simplify right side
    66,249,480x = 20,961,550,701,729,936
  5. Step 5: Solve for x
    x = 20,961,550,701,729,936/66,249,480
  6. Step 6: Final answer
    x = 316,403,248.78

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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.