Home / 540,918,008.28-811,108,339.18-172,405,009.08

Finding the Fourth Proportional to 540,918,008.28, 811,108,339.18 and 172,405,009.08

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Solution

The fourth proportional to 540,918,008.28, 811,108,339.18 and 172,405,009.08 is: 258,521,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,918,008.28 : 811,108,339.18 = 172,405,009.08 : x
  2. Step 2: Convert to fraction form
    540,918,008.28/811,108,339.18 = 172,405,009.08/x
  3. Step 3: Cross multiply
    540,918,008.28x = 811,108,339.18 × 172,405,009.08
  4. Step 4: Simplify right side
    540,918,008.28x = 139,839,140,581,191,616
  5. Step 5: Solve for x
    x = 139,839,140,581,191,616/540,918,008.28
  6. Step 6: Final answer
    x = 258,521,880.29

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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.