Home / 131,103,938.40-196,774,880.40-66,452,719.20

Finding the Fourth Proportional to 131,103,938.40, 196,774,880.40 and 66,452,719.20

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Solution

The fourth proportional to 131,103,938.40, 196,774,880.40 and 66,452,719.20 is: 99,739,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,103,938.40 : 196,774,880.40 = 66,452,719.20 : x
  2. Step 2: Convert to fraction form
    131,103,938.40/196,774,880.40 = 66,452,719.20/x
  3. Step 3: Cross multiply
    131,103,938.40x = 196,774,880.40 × 66,452,719.20
  4. Step 4: Simplify right side
    131,103,938.40x = 13,076,225,872,834,784
  5. Step 5: Solve for x
    x = 13,076,225,872,834,784/131,103,938.40
  6. Step 6: Final answer
    x = 99,739,382.60

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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.