Home / 909,358,219.20-1,364,037,328.80-392,372,414.40

Finding the Fourth Proportional to 909,358,219.20, 1,364,037,328.80 and 392,372,414.40

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Solution

The fourth proportional to 909,358,219.20, 1,364,037,328.80 and 392,372,414.40 is: 588,558,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,358,219.20 : 1,364,037,328.80 = 392,372,414.40 : x
  2. Step 2: Convert to fraction form
    909,358,219.20/1,364,037,328.80 = 392,372,414.40/x
  3. Step 3: Cross multiply
    909,358,219.20x = 1,364,037,328.80 × 392,372,414.40
  4. Step 4: Simplify right side
    909,358,219.20x = 535,210,620,032,982,592
  5. Step 5: Solve for x
    x = 535,210,620,032,982,592/909,358,219.20
  6. Step 6: Final answer
    x = 588,558,621.60

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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.