Home / 472,392,475.20-708,588,712.80-326,785,514.40

Finding the Fourth Proportional to 472,392,475.20, 708,588,712.80 and 326,785,514.40

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Solution

The fourth proportional to 472,392,475.20, 708,588,712.80 and 326,785,514.40 is: 490,178,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,475.20 : 708,588,712.80 = 326,785,514.40 : x
  2. Step 2: Convert to fraction form
    472,392,475.20/708,588,712.80 = 326,785,514.40/x
  3. Step 3: Cross multiply
    472,392,475.20x = 708,588,712.80 × 326,785,514.40
  4. Step 4: Simplify right side
    472,392,475.20x = 231,556,527,010,381,824
  5. Step 5: Solve for x
    x = 231,556,527,010,381,824/472,392,475.20
  6. Step 6: Final answer
    x = 490,178,271.60

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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.