Home / 380,946,518.64-571,282,765.02-131,884,147.44

Finding the Fourth Proportional to 380,946,518.64, 571,282,765.02 and 131,884,147.44

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Solution

The fourth proportional to 380,946,518.64, 571,282,765.02 and 131,884,147.44 is: 197,778,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,946,518.64 : 571,282,765.02 = 131,884,147.44 : x
  2. Step 2: Convert to fraction form
    380,946,518.64/571,282,765.02 = 131,884,147.44/x
  3. Step 3: Cross multiply
    380,946,518.64x = 571,282,765.02 × 131,884,147.44
  4. Step 4: Simplify right side
    380,946,518.64x = 75,343,140,411,828,544
  5. Step 5: Solve for x
    x = 75,343,140,411,828,544/380,946,518.64
  6. Step 6: Final answer
    x = 197,778,787.11

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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.