Home / 232,590,649.08-320,977,248.30-128,172,457.20

Finding the Fourth Proportional to 232,590,649.08, 320,977,248.30 and 128,172,457.20

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Solution

The fourth proportional to 232,590,649.08, 320,977,248.30 and 128,172,457.20 is: 176,879,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,649.08 : 320,977,248.30 = 128,172,457.20 : x
  2. Step 2: Convert to fraction form
    232,590,649.08/320,977,248.30 = 128,172,457.20/x
  3. Step 3: Cross multiply
    232,590,649.08x = 320,977,248.30 × 128,172,457.20
  4. Step 4: Simplify right side
    232,590,649.08x = 41,140,442,619,905,528
  5. Step 5: Solve for x
    x = 41,140,442,619,905,528/232,590,649.08
  6. Step 6: Final answer
    x = 176,879,177.14

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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.