Home / 90,144,004.40-135,216,006.60-54,312,196.40

Finding the Fourth Proportional to 90,144,004.40, 135,216,006.60 and 54,312,196.40

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Solution

The fourth proportional to 90,144,004.40, 135,216,006.60 and 54,312,196.40 is: 81,468,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144,004.40 : 135,216,006.60 = 54,312,196.40 : x
  2. Step 2: Convert to fraction form
    90,144,004.40/135,216,006.60 = 54,312,196.40/x
  3. Step 3: Cross multiply
    90,144,004.40x = 135,216,006.60 × 54,312,196.40
  4. Step 4: Simplify right side
    90,144,004.40x = 7,343,878,306,882,896
  5. Step 5: Solve for x
    x = 7,343,878,306,882,896/90,144,004.40
  6. Step 6: Final answer
    x = 81,468,294.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.