Home / 358,712,521.60-538,068,782.40-355,689,212.80

Finding the Fourth Proportional to 358,712,521.60, 538,068,782.40 and 355,689,212.80

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Solution

The fourth proportional to 358,712,521.60, 538,068,782.40 and 355,689,212.80 is: 533,533,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,712,521.60 : 538,068,782.40 = 355,689,212.80 : x
  2. Step 2: Convert to fraction form
    358,712,521.60/538,068,782.40 = 355,689,212.80/x
  3. Step 3: Cross multiply
    358,712,521.60x = 538,068,782.40 × 355,689,212.80
  4. Step 4: Simplify right side
    358,712,521.60x = 191,385,261,644,110,496
  5. Step 5: Solve for x
    x = 191,385,261,644,110,496/358,712,521.60
  6. Step 6: Final answer
    x = 533,533,819.20

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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.