Home / 87,938,689.60-131,908,034.40-64,980,438.40

Finding the Fourth Proportional to 87,938,689.60, 131,908,034.40 and 64,980,438.40

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Solution

The fourth proportional to 87,938,689.60, 131,908,034.40 and 64,980,438.40 is: 97,470,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938,689.60 : 131,908,034.40 = 64,980,438.40 : x
  2. Step 2: Convert to fraction form
    87,938,689.60/131,908,034.40 = 64,980,438.40/x
  3. Step 3: Cross multiply
    87,938,689.60x = 131,908,034.40 × 64,980,438.40
  4. Step 4: Simplify right side
    87,938,689.60x = 8,571,441,903,794,281
  5. Step 5: Solve for x
    x = 8,571,441,903,794,281/87,938,689.60
  6. Step 6: Final answer
    x = 97,470,657.60

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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.