Home / 315,525,102.20-473,287,653.30-145,655,790.20

Finding the Fourth Proportional to 315,525,102.20, 473,287,653.30 and 145,655,790.20

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Solution

The fourth proportional to 315,525,102.20, 473,287,653.30 and 145,655,790.20 is: 218,483,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,525,102.20 : 473,287,653.30 = 145,655,790.20 : x
  2. Step 2: Convert to fraction form
    315,525,102.20/473,287,653.30 = 145,655,790.20/x
  3. Step 3: Cross multiply
    315,525,102.20x = 473,287,653.30 × 145,655,790.20
  4. Step 4: Simplify right side
    315,525,102.20x = 68,937,087,133,315,136
  5. Step 5: Solve for x
    x = 68,937,087,133,315,136/315,525,102.20
  6. Step 6: Final answer
    x = 218,483,685.30

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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.