Home / 103,221,681.54-154,835,875.77-30,432,358.38

Finding the Fourth Proportional to 103,221,681.54, 154,835,875.77 and 30,432,358.38

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Solution

The fourth proportional to 103,221,681.54, 154,835,875.77 and 30,432,358.38 is: 45,649,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,221,681.54 : 154,835,875.77 = 30,432,358.38 : x
  2. Step 2: Convert to fraction form
    103,221,681.54/154,835,875.77 = 30,432,358.38/x
  3. Step 3: Cross multiply
    103,221,681.54x = 154,835,875.77 × 30,432,358.38
  4. Step 4: Simplify right side
    103,221,681.54x = 4,712,020,861,513,799
  5. Step 5: Solve for x
    x = 4,712,020,861,513,799/103,221,681.54
  6. Step 6: Final answer
    x = 45,649,526.25

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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.