Home / 278,426,032.10-417,574,257.21-103,631,385.90

Finding the Fourth Proportional to 278,426,032.10, 417,574,257.21 and 103,631,385.90

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Solution

The fourth proportional to 278,426,032.10, 417,574,257.21 and 103,631,385.90 is: 155,422,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,426,032.10 : 417,574,257.21 = 103,631,385.90 : x
  2. Step 2: Convert to fraction form
    278,426,032.10/417,574,257.21 = 103,631,385.90/x
  3. Step 3: Cross multiply
    278,426,032.10x = 417,574,257.21 × 103,631,385.90
  4. Step 4: Simplify right side
    278,426,032.10x = 43,273,798,990,835,368
  5. Step 5: Solve for x
    x = 43,273,798,990,835,368/278,426,032.10
  6. Step 6: Final answer
    x = 155,422,963.38

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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.