Home / 706,847,278.20-975,456,020.62-389,314,722.92

Finding the Fourth Proportional to 706,847,278.20, 975,456,020.62 and 389,314,722.92

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Solution

The fourth proportional to 706,847,278.20, 975,456,020.62 and 389,314,722.92 is: 537,258,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,847,278.20 : 975,456,020.62 = 389,314,722.92 : x
  2. Step 2: Convert to fraction form
    706,847,278.20/975,456,020.62 = 389,314,722.92/x
  3. Step 3: Cross multiply
    706,847,278.20x = 975,456,020.62 × 389,314,722.92
  4. Step 4: Simplify right side
    706,847,278.20x = 379,759,390,388,321,152
  5. Step 5: Solve for x
    x = 379,759,390,388,321,152/706,847,278.20
  6. Step 6: Final answer
    x = 537,258,050.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.