Home / 678,736,023.31-1,018,097,529.54-402,188,169.30

Finding the Fourth Proportional to 678,736,023.31, 1,018,097,529.54 and 402,188,169.30

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Solution

The fourth proportional to 678,736,023.31, 1,018,097,529.54 and 402,188,169.30 is: 603,278,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,736,023.31 : 1,018,097,529.54 = 402,188,169.30 : x
  2. Step 2: Convert to fraction form
    678,736,023.31/1,018,097,529.54 = 402,188,169.30/x
  3. Step 3: Cross multiply
    678,736,023.31x = 1,018,097,529.54 × 402,188,169.30
  4. Step 4: Simplify right side
    678,736,023.31x = 409,466,781,574,545,280
  5. Step 5: Solve for x
    x = 409,466,781,574,545,280/678,736,023.31
  6. Step 6: Final answer
    x = 603,278,399.13

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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.