Home / 287,314,142.18-430,971,216.96-68,964,483.77

Finding the Fourth Proportional to 287,314,142.18, 430,971,216.96 and 68,964,483.77

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Solution

The fourth proportional to 287,314,142.18, 430,971,216.96 and 68,964,483.77 is: 103,446,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,314,142.18 : 430,971,216.96 = 68,964,483.77 : x
  2. Step 2: Convert to fraction form
    287,314,142.18/430,971,216.96 = 68,964,483.77/x
  3. Step 3: Cross multiply
    287,314,142.18x = 430,971,216.96 × 68,964,483.77
  4. Step 4: Simplify right side
    287,314,142.18x = 29,721,707,497,375,064
  5. Step 5: Solve for x
    x = 29,721,707,497,375,064/287,314,142.18
  6. Step 6: Final answer
    x = 103,446,726.54

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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.