Home / 120,963,878.40-181,445,817.60-108,492,729.60

Finding the Fourth Proportional to 120,963,878.40, 181,445,817.60 and 108,492,729.60

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Solution

The fourth proportional to 120,963,878.40, 181,445,817.60 and 108,492,729.60 is: 162,739,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,963,878.40 : 181,445,817.60 = 108,492,729.60 : x
  2. Step 2: Convert to fraction form
    120,963,878.40/181,445,817.60 = 108,492,729.60/x
  3. Step 3: Cross multiply
    120,963,878.40x = 181,445,817.60 × 108,492,729.60
  4. Step 4: Simplify right side
    120,963,878.40x = 19,685,552,025,927,720
  5. Step 5: Solve for x
    x = 19,685,552,025,927,720/120,963,878.40
  6. Step 6: Final answer
    x = 162,739,094.40

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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.