Home / 210,350,048.80-315,525,073.20-97,103,840.80

Finding the Fourth Proportional to 210,350,048.80, 315,525,073.20 and 97,103,840.80

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Solution

The fourth proportional to 210,350,048.80, 315,525,073.20 and 97,103,840.80 is: 145,655,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,350,048.80 : 315,525,073.20 = 97,103,840.80 : x
  2. Step 2: Convert to fraction form
    210,350,048.80/315,525,073.20 = 97,103,840.80/x
  3. Step 3: Cross multiply
    210,350,048.80x = 315,525,073.20 × 97,103,840.80
  4. Step 4: Simplify right side
    210,350,048.80x = 30,638,696,476,421,144
  5. Step 5: Solve for x
    x = 30,638,696,476,421,144/210,350,048.80
  6. Step 6: Final answer
    x = 145,655,761.20

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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.