Home / 384,354,601.20-576,531,901.80-380,771,420.40

Finding the Fourth Proportional to 384,354,601.20, 576,531,901.80 and 380,771,420.40

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Solution

The fourth proportional to 384,354,601.20, 576,531,901.80 and 380,771,420.40 is: 571,157,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,354,601.20 : 576,531,901.80 = 380,771,420.40 : x
  2. Step 2: Convert to fraction form
    384,354,601.20/576,531,901.80 = 380,771,420.40/x
  3. Step 3: Cross multiply
    384,354,601.20x = 576,531,901.80 × 380,771,420.40
  4. Step 4: Simplify right side
    384,354,601.20x = 219,526,871,154,299,296
  5. Step 5: Solve for x
    x = 219,526,871,154,299,296/384,354,601.20
  6. Step 6: Final answer
    x = 571,157,130.60

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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.