Home / 76,637,904.60-114,956,856.90-49,428,125.40

Finding the Fourth Proportional to 76,637,904.60, 114,956,856.90 and 49,428,125.40

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Solution

The fourth proportional to 76,637,904.60, 114,956,856.90 and 49,428,125.40 is: 74,142,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,637,904.60 : 114,956,856.90 = 49,428,125.40 : x
  2. Step 2: Convert to fraction form
    76,637,904.60/114,956,856.90 = 49,428,125.40/x
  3. Step 3: Cross multiply
    76,637,904.60x = 114,956,856.90 × 49,428,125.40
  4. Step 4: Simplify right side
    76,637,904.60x = 5,682,101,938,443,055
  5. Step 5: Solve for x
    x = 5,682,101,938,443,055/76,637,904.60
  6. Step 6: Final answer
    x = 74,142,188.10

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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.