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Finding the Third Proportional to 7,878,312 and 17,136,985.50

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Solution

The third proportional to 7,878,312 and 17,136,985.50 is: 37,276,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,312 : 17,136,985.50 = 17,136,985.50 : x
  2. Step 2: Convert to fraction form
    7,878,312/17,136,985.50 = 17,136,985.50/x
  3. Step 3: Cross multiply
    7,878,312x = 17,136,985.50 × 17,136,985.50
  4. Step 4: Simplify right side
    7,878,312x = 293,676,272,027,210.25
  5. Step 5: Solve for x
    x = 293,676,272,027,210.25/7,878,312
  6. Step 6: Final answer
    x = 37,276,547.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.