Home / 278,112,246.80-390,163,361.20-278,112,246.80

Finding the Fourth Proportional to 278,112,246.80, 390,163,361.20 and 278,112,246.80

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Solution

The fourth proportional to 278,112,246.80, 390,163,361.20 and 278,112,246.80 is: 390,163,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,112,246.80 : 390,163,361.20 = 278,112,246.80 : x
  2. Step 2: Convert to fraction form
    278,112,246.80/390,163,361.20 = 278,112,246.80/x
  3. Step 3: Cross multiply
    278,112,246.80x = 390,163,361.20 × 278,112,246.80
  4. Step 4: Simplify right side
    278,112,246.80x = 108,509,209,002,371,952
  5. Step 5: Solve for x
    x = 108,509,209,002,371,952/278,112,246.80
  6. Step 6: Final answer
    x = 390,163,361.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.