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Finding the Third Proportional to 78,501,294 and 115,484,805

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Solution

The third proportional to 78,501,294 and 115,484,805 is: 169,891,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,501,294 : 115,484,805 = 115,484,805 : x
  2. Step 2: Convert to fraction form
    78,501,294/115,484,805 = 115,484,805/x
  3. Step 3: Cross multiply
    78,501,294x = 115,484,805 × 115,484,805
  4. Step 4: Simplify right side
    78,501,294x = 13,336,740,185,888,024
  5. Step 5: Solve for x
    x = 13,336,740,185,888,024/78,501,294
  6. Step 6: Final answer
    x = 169,891,978.93

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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.