Home / 90,640,212.40-136,000,501.08-47,499,158.80

Finding the Fourth Proportional to 90,640,212.40, 136,000,501.08 and 47,499,158.80

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Solution

The fourth proportional to 90,640,212.40, 136,000,501.08 and 47,499,158.80 is: 71,269,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,212.40 : 136,000,501.08 = 47,499,158.80 : x
  2. Step 2: Convert to fraction form
    90,640,212.40/136,000,501.08 = 47,499,158.80/x
  3. Step 3: Cross multiply
    90,640,212.40x = 136,000,501.08 × 47,499,158.80
  4. Step 4: Simplify right side
    90,640,212.40x = 6,459,909,397,678,492
  5. Step 5: Solve for x
    x = 6,459,909,397,678,492/90,640,212.40
  6. Step 6: Final answer
    x = 71,269,795.45

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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.