Home / 210,235,868.20-315,353,802.30-124,071,567.40

Finding the Fourth Proportional to 210,235,868.20, 315,353,802.30 and 124,071,567.40

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Solution

The fourth proportional to 210,235,868.20, 315,353,802.30 and 124,071,567.40 is: 186,107,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,235,868.20 : 315,353,802.30 = 124,071,567.40 : x
  2. Step 2: Convert to fraction form
    210,235,868.20/315,353,802.30 = 124,071,567.40/x
  3. Step 3: Cross multiply
    210,235,868.20x = 315,353,802.30 × 124,071,567.40
  4. Step 4: Simplify right side
    210,235,868.20x = 39,126,440,536,910,728
  5. Step 5: Solve for x
    x = 39,126,440,536,910,728/210,235,868.20
  6. Step 6: Final answer
    x = 186,107,351.10

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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.