Home / 127,225,880.20-190,838,820.30-45,437,110.30

Finding the Fourth Proportional to 127,225,880.20, 190,838,820.30 and 45,437,110.30

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Solution

The fourth proportional to 127,225,880.20, 190,838,820.30 and 45,437,110.30 is: 68,155,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225,880.20 : 190,838,820.30 = 45,437,110.30 : x
  2. Step 2: Convert to fraction form
    127,225,880.20/190,838,820.30 = 45,437,110.30/x
  3. Step 3: Cross multiply
    127,225,880.20x = 190,838,820.30 × 45,437,110.30
  4. Step 4: Simplify right side
    127,225,880.20x = 8,671,164,527,492,979
  5. Step 5: Solve for x
    x = 8,671,164,527,492,979/127,225,880.20
  6. Step 6: Final answer
    x = 68,155,665.45

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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.