Home / 740,392,788.52-1,021,727,439.48-405,866,031.76

Finding the Fourth Proportional to 740,392,788.52, 1,021,727,439.48 and 405,866,031.76

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Solution

The fourth proportional to 740,392,788.52, 1,021,727,439.48 and 405,866,031.76 is: 560,087,115.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,392,788.52 : 1,021,727,439.48 = 405,866,031.76 : x
  2. Step 2: Convert to fraction form
    740,392,788.52/1,021,727,439.48 = 405,866,031.76/x
  3. Step 3: Cross multiply
    740,392,788.52x = 1,021,727,439.48 × 405,866,031.76
  4. Step 4: Simplify right side
    740,392,788.52x = 414,684,461,402,053,184
  5. Step 5: Solve for x
    x = 414,684,461,402,053,184/740,392,788.52
  6. Step 6: Final answer
    x = 560,087,115.69

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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.