Home / 1,274,932,917.40-1,759,389,541.68-710,441,591.28

Finding the Fourth Proportional to 1,274,932,917.40, 1,759,389,541.68 and 710,441,591.28

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Solution

The fourth proportional to 1,274,932,917.40, 1,759,389,541.68 and 710,441,591.28 is: 980,399,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,932,917.40 : 1,759,389,541.68 = 710,441,591.28 : x
  2. Step 2: Convert to fraction form
    1,274,932,917.40/1,759,389,541.68 = 710,441,591.28/x
  3. Step 3: Cross multiply
    1,274,932,917.40x = 1,759,389,541.68 × 710,441,591.28
  4. Step 4: Simplify right side
    1,274,932,917.40x = 1,249,943,505,672,529,152
  5. Step 5: Solve for x
    x = 1,249,943,505,672,529,152/1,274,932,917.40
  6. Step 6: Final answer
    x = 980,399,430.13

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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.