Home / 766,584,006.60-1,149,876,009.90-421,404,256.20

Finding the Fourth Proportional to 766,584,006.60, 1,149,876,009.90 and 421,404,256.20

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Solution

The fourth proportional to 766,584,006.60, 1,149,876,009.90 and 421,404,256.20 is: 632,106,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,584,006.60 : 1,149,876,009.90 = 421,404,256.20 : x
  2. Step 2: Convert to fraction form
    766,584,006.60/1,149,876,009.90 = 421,404,256.20/x
  3. Step 3: Cross multiply
    766,584,006.60x = 1,149,876,009.90 × 421,404,256.20
  4. Step 4: Simplify right side
    766,584,006.60x = 484,562,644,674,133,376
  5. Step 5: Solve for x
    x = 484,562,644,674,133,376/766,584,006.60
  6. Step 6: Final answer
    x = 632,106,384.30

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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.