Home / 942,078,962.11-1,413,329,192.72-287,081,251.11

Finding the Fourth Proportional to 942,078,962.11, 1,413,329,192.72 and 287,081,251.11

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Solution

The fourth proportional to 942,078,962.11, 1,413,329,192.72 and 287,081,251.11 is: 430,686,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,078,962.11 : 1,413,329,192.72 = 287,081,251.11 : x
  2. Step 2: Convert to fraction form
    942,078,962.11/1,413,329,192.72 = 287,081,251.11/x
  3. Step 3: Cross multiply
    942,078,962.11x = 1,413,329,192.72 × 287,081,251.11
  4. Step 4: Simplify right side
    942,078,962.11x = 405,740,312,876,343,936
  5. Step 5: Solve for x
    x = 405,740,312,876,343,936/942,078,962.11
  6. Step 6: Final answer
    x = 430,686,098.72

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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.