Home / 72,346,094.60-108,519,141.90-66,803,361.80

Finding the Fourth Proportional to 72,346,094.60, 108,519,141.90 and 66,803,361.80

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Solution

The fourth proportional to 72,346,094.60, 108,519,141.90 and 66,803,361.80 is: 100,205,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346,094.60 : 108,519,141.90 = 66,803,361.80 : x
  2. Step 2: Convert to fraction form
    72,346,094.60/108,519,141.90 = 66,803,361.80/x
  3. Step 3: Cross multiply
    72,346,094.60x = 108,519,141.90 × 66,803,361.80
  4. Step 4: Simplify right side
    72,346,094.60x = 7,249,443,498,571,239
  5. Step 5: Solve for x
    x = 7,249,443,498,571,239/72,346,094.60
  6. Step 6: Final answer
    x = 100,205,042.70

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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.