Home / 891,472,015.80-1,337,208,023.70-278,055,257.40

Finding the Fourth Proportional to 891,472,015.80, 1,337,208,023.70 and 278,055,257.40

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Solution

The fourth proportional to 891,472,015.80, 1,337,208,023.70 and 278,055,257.40 is: 417,082,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,472,015.80 : 1,337,208,023.70 = 278,055,257.40 : x
  2. Step 2: Convert to fraction form
    891,472,015.80/1,337,208,023.70 = 278,055,257.40/x
  3. Step 3: Cross multiply
    891,472,015.80x = 1,337,208,023.70 × 278,055,257.40
  4. Step 4: Simplify right side
    891,472,015.80x = 371,817,721,227,248,768
  5. Step 5: Solve for x
    x = 371,817,721,227,248,768/891,472,015.80
  6. Step 6: Final answer
    x = 417,082,886.10

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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.