Home / 315,524,760.20-473,287,140.30-145,655,448.20

Finding the Fourth Proportional to 315,524,760.20, 473,287,140.30 and 145,655,448.20

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Solution

The fourth proportional to 315,524,760.20, 473,287,140.30 and 145,655,448.20 is: 218,483,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,524,760.20 : 473,287,140.30 = 145,655,448.20 : x
  2. Step 2: Convert to fraction form
    315,524,760.20/473,287,140.30 = 145,655,448.20/x
  3. Step 3: Cross multiply
    315,524,760.20x = 473,287,140.30 × 145,655,448.20
  4. Step 4: Simplify right side
    315,524,760.20x = 68,936,850,547,692,776
  5. Step 5: Solve for x
    x = 68,936,850,547,692,776/315,524,760.20
  6. Step 6: Final answer
    x = 218,483,172.30

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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.