Home / 121,014,006.40-181,521,009.60-30,137,595.40

Finding the Fourth Proportional to 121,014,006.40, 181,521,009.60 and 30,137,595.40

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Solution

The fourth proportional to 121,014,006.40, 181,521,009.60 and 30,137,595.40 is: 45,206,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014,006.40 : 181,521,009.60 = 30,137,595.40 : x
  2. Step 2: Convert to fraction form
    121,014,006.40/181,521,009.60 = 30,137,595.40/x
  3. Step 3: Cross multiply
    121,014,006.40x = 181,521,009.60 × 30,137,595.40
  4. Step 4: Simplify right side
    121,014,006.40x = 5,470,606,743,924,315
  5. Step 5: Solve for x
    x = 5,470,606,743,924,315/121,014,006.40
  6. Step 6: Final answer
    x = 45,206,393.10

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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.