Home / 878,974,876.90-1,318,672,267.35-265,565,116.90

Finding the Fourth Proportional to 878,974,876.90, 1,318,672,267.35 and 265,565,116.90

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Solution

The fourth proportional to 878,974,876.90, 1,318,672,267.35 and 265,565,116.90 is: 398,411,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,974,876.90 : 1,318,672,267.35 = 265,565,116.90 : x
  2. Step 2: Convert to fraction form
    878,974,876.90/1,318,672,267.35 = 265,565,116.90/x
  3. Step 3: Cross multiply
    878,974,876.90x = 1,318,672,267.35 × 265,565,116.90
  4. Step 4: Simplify right side
    878,974,876.90x = 350,193,354,831,590,784
  5. Step 5: Solve for x
    x = 350,193,354,831,590,784/878,974,876.90
  6. Step 6: Final answer
    x = 398,411,108.25

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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.