Home / 121,014,013.40-181,521,020.10-30,137,602.40

Finding the Fourth Proportional to 121,014,013.40, 181,521,020.10 and 30,137,602.40

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Solution

The fourth proportional to 121,014,013.40, 181,521,020.10 and 30,137,602.40 is: 45,206,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014,013.40 : 181,521,020.10 = 30,137,602.40 : x
  2. Step 2: Convert to fraction form
    121,014,013.40/181,521,020.10 = 30,137,602.40/x
  3. Step 3: Cross multiply
    121,014,013.40x = 181,521,020.10 × 30,137,602.40
  4. Step 4: Simplify right side
    121,014,013.40x = 5,470,608,331,016,208
  5. Step 5: Solve for x
    x = 5,470,608,331,016,208/121,014,013.40
  6. Step 6: Final answer
    x = 45,206,403.60

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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.