Home / 315,525,096.70-473,287,645.05-145,655,784.70

Finding the Fourth Proportional to 315,525,096.70, 473,287,645.05 and 145,655,784.70

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Solution

The fourth proportional to 315,525,096.70, 473,287,645.05 and 145,655,784.70 is: 218,483,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,525,096.70 : 473,287,645.05 = 145,655,784.70 : x
  2. Step 2: Convert to fraction form
    315,525,096.70/473,287,645.05 = 145,655,784.70/x
  3. Step 3: Cross multiply
    315,525,096.70x = 473,287,645.05 × 145,655,784.70
  4. Step 4: Simplify right side
    315,525,096.70x = 68,937,083,328,572,816
  5. Step 5: Solve for x
    x = 68,937,083,328,572,816/315,525,096.70
  6. Step 6: Final answer
    x = 218,483,677.05

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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.