Home / 402,487,520.10-555,429,438.95-226,276,300.95

Finding the Fourth Proportional to 402,487,520.10, 555,429,438.95 and 226,276,300.95

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Solution

The fourth proportional to 402,487,520.10, 555,429,438.95 and 226,276,300.95 is: 312,259,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,487,520.10 : 555,429,438.95 = 226,276,300.95 : x
  2. Step 2: Convert to fraction form
    402,487,520.10/555,429,438.95 = 226,276,300.95/x
  3. Step 3: Cross multiply
    402,487,520.10x = 555,429,438.95 × 226,276,300.95
  4. Step 4: Simplify right side
    402,487,520.10x = 125,680,518,883,208,480
  5. Step 5: Solve for x
    x = 125,680,518,883,208,480/402,487,520.10
  6. Step 6: Final answer
    x = 312,259,418.26

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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.