Home / 121,161,005.40-181,742,544.90-40,381,973.40

Finding the Fourth Proportional to 121,161,005.40, 181,742,544.90 and 40,381,973.40

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Solution

The fourth proportional to 121,161,005.40, 181,742,544.90 and 40,381,973.40 is: 60,573,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,161,005.40 : 181,742,544.90 = 40,381,973.40 : x
  2. Step 2: Convert to fraction form
    121,161,005.40/181,742,544.90 = 40,381,973.40/x
  3. Step 3: Cross multiply
    121,161,005.40x = 181,742,544.90 × 40,381,973.40
  4. Step 4: Simplify right side
    121,161,005.40x = 7,339,122,613,800,106
  5. Step 5: Solve for x
    x = 7,339,122,613,800,106/121,161,005.40
  6. Step 6: Final answer
    x = 60,573,305.66

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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.