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Finding the Third Proportional to 59,838,490 and 129,124,820

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Solution

The third proportional to 59,838,490 and 129,124,820 is: 278,637,030.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,838,490 : 129,124,820 = 129,124,820 : x
  2. Step 2: Convert to fraction form
    59,838,490/129,124,820 = 129,124,820/x
  3. Step 3: Cross multiply
    59,838,490x = 129,124,820 × 129,124,820
  4. Step 4: Simplify right side
    59,838,490x = 16,673,219,140,032,400
  5. Step 5: Solve for x
    x = 16,673,219,140,032,400/59,838,490
  6. Step 6: Final answer
    x = 278,637,030.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.