Home / 670,950,889.95-1,006,089,553.26-390,922,445.46

Finding the Fourth Proportional to 670,950,889.95, 1,006,089,553.26 and 390,922,445.46

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Solution

The fourth proportional to 670,950,889.95, 1,006,089,553.26 and 390,922,445.46 is: 586,187,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,950,889.95 : 1,006,089,553.26 = 390,922,445.46 : x
  2. Step 2: Convert to fraction form
    670,950,889.95/1,006,089,553.26 = 390,922,445.46/x
  3. Step 3: Cross multiply
    670,950,889.95x = 1,006,089,553.26 × 390,922,445.46
  4. Step 4: Simplify right side
    670,950,889.95x = 393,302,988,512,158,080
  5. Step 5: Solve for x
    x = 393,302,988,512,158,080/670,950,889.95
  6. Step 6: Final answer
    x = 586,187,445.91

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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.