Home / 127,582,257.60-191,373,386.40-72,938,750.40

Finding the Fourth Proportional to 127,582,257.60, 191,373,386.40 and 72,938,750.40

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Solution

The fourth proportional to 127,582,257.60, 191,373,386.40 and 72,938,750.40 is: 109,408,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,582,257.60 : 191,373,386.40 = 72,938,750.40 : x
  2. Step 2: Convert to fraction form
    127,582,257.60/191,373,386.40 = 72,938,750.40/x
  3. Step 3: Cross multiply
    127,582,257.60x = 191,373,386.40 × 72,938,750.40
  4. Step 4: Simplify right side
    127,582,257.60x = 13,958,535,663,832,356
  5. Step 5: Solve for x
    x = 13,958,535,663,832,356/127,582,257.60
  6. Step 6: Final answer
    x = 109,408,125.60

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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.