Home / 670,950,886.95-1,006,089,548.76-390,922,442.46

Finding the Fourth Proportional to 670,950,886.95, 1,006,089,548.76 and 390,922,442.46

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Solution

The fourth proportional to 670,950,886.95, 1,006,089,548.76 and 390,922,442.46 is: 586,187,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,950,886.95 : 1,006,089,548.76 = 390,922,442.46 : x
  2. Step 2: Convert to fraction form
    670,950,886.95/1,006,089,548.76 = 390,922,442.46/x
  3. Step 3: Cross multiply
    670,950,886.95x = 1,006,089,548.76 × 390,922,442.46
  4. Step 4: Simplify right side
    670,950,886.95x = 393,302,983,734,738,432
  5. Step 5: Solve for x
    x = 393,302,983,734,738,432/670,950,886.95
  6. Step 6: Final answer
    x = 586,187,441.41

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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.