Home / 15,359,643.63-21,196,092.96-8,390,238.39

Finding the Fourth Proportional to 15,359,643.63, 21,196,092.96 and 8,390,238.39

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Solution

The fourth proportional to 15,359,643.63, 21,196,092.96 and 8,390,238.39 is: 11,578,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,359,643.63 : 21,196,092.96 = 8,390,238.39 : x
  2. Step 2: Convert to fraction form
    15,359,643.63/21,196,092.96 = 8,390,238.39/x
  3. Step 3: Cross multiply
    15,359,643.63x = 21,196,092.96 × 8,390,238.39
  4. Step 4: Simplify right side
    15,359,643.63x = 177,840,272,871,000.75
  5. Step 5: Solve for x
    x = 177,840,272,871,000.75/15,359,643.63
  6. Step 6: Final answer
    x = 11,578,411.40

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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.