Home / 1,008,021,439.20-1,512,032,158.80-904,709,308.80

Finding the Fourth Proportional to 1,008,021,439.20, 1,512,032,158.80 and 904,709,308.80

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Solution

The fourth proportional to 1,008,021,439.20, 1,512,032,158.80 and 904,709,308.80 is: 1,357,063,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,021,439.20 : 1,512,032,158.80 = 904,709,308.80 : x
  2. Step 2: Convert to fraction form
    1,008,021,439.20/1,512,032,158.80 = 904,709,308.80/x
  3. Step 3: Cross multiply
    1,008,021,439.20x = 1,512,032,158.80 × 904,709,308.80
  4. Step 4: Simplify right side
    1,008,021,439.20x = 1,367,949,569,271,319,808
  5. Step 5: Solve for x
    x = 1,367,949,569,271,319,808/1,008,021,439.20
  6. Step 6: Final answer
    x = 1,357,063,963.20

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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.