Home / 121,160,940.40-181,742,447.40-40,381,908.40

Finding the Fourth Proportional to 121,160,940.40, 181,742,447.40 and 40,381,908.40

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Solution

The fourth proportional to 121,160,940.40, 181,742,447.40 and 40,381,908.40 is: 60,573,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160,940.40 : 181,742,447.40 = 40,381,908.40 : x
  2. Step 2: Convert to fraction form
    121,160,940.40/181,742,447.40 = 40,381,908.40/x
  3. Step 3: Cross multiply
    121,160,940.40x = 181,742,447.40 × 40,381,908.40
  4. Step 4: Simplify right side
    121,160,940.40x = 7,339,106,863,298,618
  5. Step 5: Solve for x
    x = 7,339,106,863,298,618/121,160,940.40
  6. Step 6: Final answer
    x = 60,573,208.16

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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.