Home / 287,684,759.60-431,569,129.80-93,563,140.40

Finding the Fourth Proportional to 287,684,759.60, 431,569,129.80 and 93,563,140.40

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Solution

The fourth proportional to 287,684,759.60, 431,569,129.80 and 93,563,140.40 is: 140,358,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,684,759.60 : 431,569,129.80 = 93,563,140.40 : x
  2. Step 2: Convert to fraction form
    287,684,759.60/431,569,129.80 = 93,563,140.40/x
  3. Step 3: Cross multiply
    287,684,759.60x = 431,569,129.80 × 93,563,140.40
  4. Step 4: Simplify right side
    287,684,759.60x = 40,378,963,083,783,224
  5. Step 5: Solve for x
    x = 40,378,963,083,783,224/287,684,759.60
  6. Step 6: Final answer
    x = 140,358,367.05

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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.