Home / 129,358,973.20-194,038,459.80-61,334,525.20

Finding the Fourth Proportional to 129,358,973.20, 194,038,459.80 and 61,334,525.20

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Solution

The fourth proportional to 129,358,973.20, 194,038,459.80 and 61,334,525.20 is: 92,001,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,358,973.20 : 194,038,459.80 = 61,334,525.20 : x
  2. Step 2: Convert to fraction form
    129,358,973.20/194,038,459.80 = 61,334,525.20/x
  3. Step 3: Cross multiply
    129,358,973.20x = 194,038,459.80 × 61,334,525.20
  4. Step 4: Simplify right side
    129,358,973.20x = 11,901,256,802,372,288
  5. Step 5: Solve for x
    x = 11,901,256,802,372,288/129,358,973.20
  6. Step 6: Final answer
    x = 92,001,787.80

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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.