Home / 90,846,068.40-136,269,102.60-83,831,047.20

Finding the Fourth Proportional to 90,846,068.40, 136,269,102.60 and 83,831,047.20

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Solution

The fourth proportional to 90,846,068.40, 136,269,102.60 and 83,831,047.20 is: 125,746,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,846,068.40 : 136,269,102.60 = 83,831,047.20 : x
  2. Step 2: Convert to fraction form
    90,846,068.40/136,269,102.60 = 83,831,047.20/x
  3. Step 3: Cross multiply
    90,846,068.40x = 136,269,102.60 × 83,831,047.20
  4. Step 4: Simplify right side
    90,846,068.40x = 11,423,581,571,962,242
  5. Step 5: Solve for x
    x = 11,423,581,571,962,242/90,846,068.40
  6. Step 6: Final answer
    x = 125,746,570.80

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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.