Home / 878,586,442.40-1,212,445,964.48-482,116,066.80

Finding the Fourth Proportional to 878,586,442.40, 1,212,445,964.48 and 482,116,066.80

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Solution

The fourth proportional to 878,586,442.40, 1,212,445,964.48 and 482,116,066.80 is: 665,318,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,442.40 : 1,212,445,964.48 = 482,116,066.80 : x
  2. Step 2: Convert to fraction form
    878,586,442.40/1,212,445,964.48 = 482,116,066.80/x
  3. Step 3: Cross multiply
    878,586,442.40x = 1,212,445,964.48 × 482,116,066.80
  4. Step 4: Simplify right side
    878,586,442.40x = 584,539,679,600,219,520
  5. Step 5: Solve for x
    x = 584,539,679,600,219,520/878,586,442.40
  6. Step 6: Final answer
    x = 665,318,347.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.