Home / 15,308,988.89-21,126,395.35-8,433,470.95

Finding the Fourth Proportional to 15,308,988.89, 21,126,395.35 and 8,433,470.95

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Solution

The fourth proportional to 15,308,988.89, 21,126,395.35 and 8,433,470.95 is: 11,638,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308,988.89 : 21,126,395.35 = 8,433,470.95 : x
  2. Step 2: Convert to fraction form
    15,308,988.89/21,126,395.35 = 8,433,470.95/x
  3. Step 3: Cross multiply
    15,308,988.89x = 21,126,395.35 × 8,433,470.95
  4. Step 4: Simplify right side
    15,308,988.89x = 178,168,841,314,640.75
  5. Step 5: Solve for x
    x = 178,168,841,314,640.75/15,308,988.89
  6. Step 6: Final answer
    x = 11,638,184.77

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1.5x scale

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.