Home / 684,378,032.40-1,025,811,221.40-377,890,102.80

Finding the Fourth Proportional to 684,378,032.40, 1,025,811,221.40 and 377,890,102.80

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Solution

The fourth proportional to 684,378,032.40, 1,025,811,221.40 and 377,890,102.80 is: 566,417,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,378,032.40 : 1,025,811,221.40 = 377,890,102.80 : x
  2. Step 2: Convert to fraction form
    684,378,032.40/1,025,811,221.40 = 377,890,102.80/x
  3. Step 3: Cross multiply
    684,378,032.40x = 1,025,811,221.40 × 377,890,102.80
  4. Step 4: Simplify right side
    684,378,032.40x = 387,643,907,908,239,552
  5. Step 5: Solve for x
    x = 387,643,907,908,239,552/684,378,032.40
  6. Step 6: Final answer
    x = 566,417,812.31

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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.