Home / 679,952,139.20-1,019,928,208.80-219,936,809.60

Finding the Fourth Proportional to 679,952,139.20, 1,019,928,208.80 and 219,936,809.60

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Solution

The fourth proportional to 679,952,139.20, 1,019,928,208.80 and 219,936,809.60 is: 329,905,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,952,139.20 : 1,019,928,208.80 = 219,936,809.60 : x
  2. Step 2: Convert to fraction form
    679,952,139.20/1,019,928,208.80 = 219,936,809.60/x
  3. Step 3: Cross multiply
    679,952,139.20x = 1,019,928,208.80 × 219,936,809.60
  4. Step 4: Simplify right side
    679,952,139.20x = 224,319,756,264,514,624
  5. Step 5: Solve for x
    x = 224,319,756,264,514,624/679,952,139.20
  6. Step 6: Final answer
    x = 329,905,214.40

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1.5x scale

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.