Home / 678,643,641.83-1,017,889,233.62-187,426,745.30

Finding the Fourth Proportional to 678,643,641.83, 1,017,889,233.62 and 187,426,745.30

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Solution

The fourth proportional to 678,643,641.83, 1,017,889,233.62 and 187,426,745.30 is: 281,119,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,643,641.83 : 1,017,889,233.62 = 187,426,745.30 : x
  2. Step 2: Convert to fraction form
    678,643,641.83/1,017,889,233.62 = 187,426,745.30/x
  3. Step 3: Cross multiply
    678,643,641.83x = 1,017,889,233.62 × 187,426,745.30
  4. Step 4: Simplify right side
    678,643,641.83x = 190,779,666,134,915,552
  5. Step 5: Solve for x
    x = 190,779,666,134,915,552/678,643,641.83
  6. Step 6: Final answer
    x = 281,119,065.11

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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.