Home / 13,316,871.52-18,375,312.16-8,087,160

Finding the Fourth Proportional to 13,316,871.52, 18,375,312.16 and 8,087,160

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Solution

The fourth proportional to 13,316,871.52, 18,375,312.16 and 8,087,160 is: 11,159,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316,871.52 : 18,375,312.16 = 8,087,160 : x
  2. Step 2: Convert to fraction form
    13,316,871.52/18,375,312.16 = 8,087,160/x
  3. Step 3: Cross multiply
    13,316,871.52x = 18,375,312.16 × 8,087,160
  4. Step 4: Simplify right side
    13,316,871.52x = 148,604,089,487,865.59
  5. Step 5: Solve for x
    x = 148,604,089,487,865.59/13,316,871.52
  6. Step 6: Final answer
    x = 11,159,084.12

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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.