Home / 90,938,246.40-136,407,369.60-83,923,225.20

Finding the Fourth Proportional to 90,938,246.40, 136,407,369.60 and 83,923,225.20

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Solution

The fourth proportional to 90,938,246.40, 136,407,369.60 and 83,923,225.20 is: 125,884,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,938,246.40 : 136,407,369.60 = 83,923,225.20 : x
  2. Step 2: Convert to fraction form
    90,938,246.40/136,407,369.60 = 83,923,225.20/x
  3. Step 3: Cross multiply
    90,938,246.40x = 136,407,369.60 × 83,923,225.20
  4. Step 4: Simplify right side
    90,938,246.40x = 11,447,746,397,880,434
  5. Step 5: Solve for x
    x = 11,447,746,397,880,434/90,938,246.40
  6. Step 6: Final answer
    x = 125,884,837.80

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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.