Home / 85,258,307.40-127,868,173.20-39,155,854.92

Finding the Fourth Proportional to 85,258,307.40, 127,868,173.20 and 39,155,854.92

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Solution

The fourth proportional to 85,258,307.40, 127,868,173.20 and 39,155,854.92 is: 58,724,924.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,258,307.40 : 127,868,173.20 = 39,155,854.92 : x
  2. Step 2: Convert to fraction form
    85,258,307.40/127,868,173.20 = 39,155,854.92/x
  3. Step 3: Cross multiply
    85,258,307.40x = 127,868,173.20 × 39,155,854.92
  4. Step 4: Simplify right side
    85,258,307.40x = 5,006,787,638,704,632
  5. Step 5: Solve for x
    x = 5,006,787,638,704,632/85,258,307.40
  6. Step 6: Final answer
    x = 58,724,924.19

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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.