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Finding the Third Proportional to 287,890,869.94 and 621,655,894.13

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Solution

The third proportional to 287,890,869.94 and 621,655,894.13 is: 1,342,369,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,890,869.94 : 621,655,894.13 = 621,655,894.13 : x
  2. Step 2: Convert to fraction form
    287,890,869.94/621,655,894.13 = 621,655,894.13/x
  3. Step 3: Cross multiply
    287,890,869.94x = 621,655,894.13 × 621,655,894.13
  4. Step 4: Simplify right side
    287,890,869.94x = 386,456,050,700,353,216
  5. Step 5: Solve for x
    x = 386,456,050,700,353,216/287,890,869.94
  6. Step 6: Final answer
    x = 1,342,369,943.11

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