Home / 315,525,112.20-473,287,668.30-145,655,800.20

Finding the Fourth Proportional to 315,525,112.20, 473,287,668.30 and 145,655,800.20

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Solution

The fourth proportional to 315,525,112.20, 473,287,668.30 and 145,655,800.20 is: 218,483,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,525,112.20 : 473,287,668.30 = 145,655,800.20 : x
  2. Step 2: Convert to fraction form
    315,525,112.20/473,287,668.30 = 145,655,800.20/x
  3. Step 3: Cross multiply
    315,525,112.20x = 473,287,668.30 × 145,655,800.20
  4. Step 4: Simplify right side
    315,525,112.20x = 68,937,094,051,028,672
  5. Step 5: Solve for x
    x = 68,937,094,051,028,672/315,525,112.20
  6. Step 6: Final answer
    x = 218,483,700.30

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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.