Home / 706,847,274.69-975,456,015.80-389,314,719.42

Finding the Fourth Proportional to 706,847,274.69, 975,456,015.80 and 389,314,719.42

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Solution

The fourth proportional to 706,847,274.69, 975,456,015.80 and 389,314,719.42 is: 537,258,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,847,274.69 : 975,456,015.80 = 389,314,719.42 : x
  2. Step 2: Convert to fraction form
    706,847,274.69/975,456,015.80 = 389,314,719.42/x
  3. Step 3: Cross multiply
    706,847,274.69x = 975,456,015.80 × 389,314,719.42
  4. Step 4: Simplify right side
    706,847,274.69x = 379,759,385,095,781,504
  5. Step 5: Solve for x
    x = 379,759,385,095,781,504/706,847,274.69
  6. Step 6: Final answer
    x = 537,258,045.26

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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.