Home / 272,970,005.40-409,455,008.10-78,887,752.20

Finding the Fourth Proportional to 272,970,005.40, 409,455,008.10 and 78,887,752.20

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Solution

The fourth proportional to 272,970,005.40, 409,455,008.10 and 78,887,752.20 is: 118,331,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,970,005.40 : 409,455,008.10 = 78,887,752.20 : x
  2. Step 2: Convert to fraction form
    272,970,005.40/409,455,008.10 = 78,887,752.20/x
  3. Step 3: Cross multiply
    272,970,005.40x = 409,455,008.10 × 78,887,752.20
  4. Step 4: Simplify right side
    272,970,005.40x = 32,300,985,216,041,796
  5. Step 5: Solve for x
    x = 32,300,985,216,041,796/272,970,005.40
  6. Step 6: Final answer
    x = 118,331,628.30

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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.