Home / 426,059,934.30-639,089,901.45-339,966,492.30

Finding the Fourth Proportional to 426,059,934.30, 639,089,901.45 and 339,966,492.30

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Solution

The fourth proportional to 426,059,934.30, 639,089,901.45 and 339,966,492.30 is: 509,949,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,059,934.30 : 639,089,901.45 = 339,966,492.30 : x
  2. Step 2: Convert to fraction form
    426,059,934.30/639,089,901.45 = 339,966,492.30/x
  3. Step 3: Cross multiply
    426,059,934.30x = 639,089,901.45 × 339,966,492.30
  4. Step 4: Simplify right side
    426,059,934.30x = 217,269,152,060,309,216
  5. Step 5: Solve for x
    x = 217,269,152,060,309,216/426,059,934.30
  6. Step 6: Final answer
    x = 509,949,738.45

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Double scale
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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.