Home / 242,638,076.40-363,957,114.60-78,875,516.40

Finding the Fourth Proportional to 242,638,076.40, 363,957,114.60 and 78,875,516.40

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Solution

The fourth proportional to 242,638,076.40, 363,957,114.60 and 78,875,516.40 is: 118,313,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,638,076.40 : 363,957,114.60 = 78,875,516.40 : x
  2. Step 2: Convert to fraction form
    242,638,076.40/363,957,114.60 = 78,875,516.40/x
  3. Step 3: Cross multiply
    242,638,076.40x = 363,957,114.60 × 78,875,516.40
  4. Step 4: Simplify right side
    242,638,076.40x = 28,707,305,361,528,984
  5. Step 5: Solve for x
    x = 28,707,305,361,528,984/242,638,076.40
  6. Step 6: Final answer
    x = 118,313,274.60

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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.