Home / 121,128,038.40-181,730,171.85-43,351,917.93

Finding the Fourth Proportional to 121,128,038.40, 181,730,171.85 and 43,351,917.93

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Solution

The fourth proportional to 121,128,038.40, 181,730,171.85 and 43,351,917.93 is: 65,041,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,128,038.40 : 181,730,171.85 = 43,351,917.93 : x
  2. Step 2: Convert to fraction form
    121,128,038.40/181,730,171.85 = 43,351,917.93/x
  3. Step 3: Cross multiply
    121,128,038.40x = 181,730,171.85 × 43,351,917.93
  4. Step 4: Simplify right side
    121,128,038.40x = 7,878,351,495,445,996
  5. Step 5: Solve for x
    x = 7,878,351,495,445,996/121,128,038.40
  6. Step 6: Final answer
    x = 65,041,518.05

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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.