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Finding the Third Proportional to 52,426,875 and 78,640,320

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Solution

The third proportional to 52,426,875 and 78,640,320 is: 117,960,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,426,875 : 78,640,320 = 78,640,320 : x
  2. Step 2: Convert to fraction form
    52,426,875/78,640,320 = 78,640,320/x
  3. Step 3: Cross multiply
    52,426,875x = 78,640,320 × 78,640,320
  4. Step 4: Simplify right side
    52,426,875x = 6,184,299,929,702,400
  5. Step 5: Solve for x
    x = 6,184,299,929,702,400/52,426,875
  6. Step 6: Final answer
    x = 117,960,491.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.