Home / 878,342,539.03-1,317,465,312.61-642,234,015.04

Finding the Fourth Proportional to 878,342,539.03, 1,317,465,312.61 and 642,234,015.04

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Solution

The fourth proportional to 878,342,539.03, 1,317,465,312.61 and 642,234,015.04 is: 963,315,562.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,342,539.03 : 1,317,465,312.61 = 642,234,015.04 : x
  2. Step 2: Convert to fraction form
    878,342,539.03/1,317,465,312.61 = 642,234,015.04/x
  3. Step 3: Cross multiply
    878,342,539.03x = 1,317,465,312.61 × 642,234,015.04
  4. Step 4: Simplify right side
    878,342,539.03x = 846,121,037,392,212,352
  5. Step 5: Solve for x
    x = 846,121,037,392,212,352/878,342,539.03
  6. Step 6: Final answer
    x = 963,315,562.89

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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.