Home / 518,943,743.98-716,141,904.03-292,930,300.78

Finding the Fourth Proportional to 518,943,743.98, 716,141,904.03 and 292,930,300.78

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Solution

The fourth proportional to 518,943,743.98, 716,141,904.03 and 292,930,300.78 is: 404,243,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,943,743.98 : 716,141,904.03 = 292,930,300.78 : x
  2. Step 2: Convert to fraction form
    518,943,743.98/716,141,904.03 = 292,930,300.78/x
  3. Step 3: Cross multiply
    518,943,743.98x = 716,141,904.03 × 292,930,300.78
  4. Step 4: Simplify right side
    518,943,743.98x = 209,779,663,346,879,424
  5. Step 5: Solve for x
    x = 209,779,663,346,879,424/518,943,743.98
  6. Step 6: Final answer
    x = 404,243,553.91

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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.