Home / 121,164,019.40-181,747,065.90-40,384,987.40

Finding the Fourth Proportional to 121,164,019.40, 181,747,065.90 and 40,384,987.40

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Solution

The fourth proportional to 121,164,019.40, 181,747,065.90 and 40,384,987.40 is: 60,577,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,164,019.40 : 181,747,065.90 = 40,384,987.40 : x
  2. Step 2: Convert to fraction form
    121,164,019.40/181,747,065.90 = 40,384,987.40/x
  3. Step 3: Cross multiply
    121,164,019.40x = 181,747,065.90 × 40,384,987.40
  4. Step 4: Simplify right side
    121,164,019.40x = 7,339,852,966,358,470
  5. Step 5: Solve for x
    x = 7,339,852,966,358,470/121,164,019.40
  6. Step 6: Final answer
    x = 60,577,826.67

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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.