Home / 15,487,513.61-21,371,890.92-8,611,848.05

Finding the Fourth Proportional to 15,487,513.61, 21,371,890.92 and 8,611,848.05

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Solution

The fourth proportional to 15,487,513.61, 21,371,890.92 and 8,611,848.05 is: 11,883,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,513.61 : 21,371,890.92 = 8,611,848.05 : x
  2. Step 2: Convert to fraction form
    15,487,513.61/21,371,890.92 = 8,611,848.05/x
  3. Step 3: Cross multiply
    15,487,513.61x = 21,371,890.92 × 8,611,848.05
  4. Step 4: Simplify right side
    15,487,513.61x = 184,051,477,144,214.75
  5. Step 5: Solve for x
    x = 184,051,477,144,214.75/15,487,513.61
  6. Step 6: Final answer
    x = 11,883,862.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.