Home / 1,237,643,332.84-1,707,980,110.50-680,740,991.56

Finding the Fourth Proportional to 1,237,643,332.84, 1,707,980,110.50 and 680,740,991.56

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Solution

The fourth proportional to 1,237,643,332.84, 1,707,980,110.50 and 680,740,991.56 is: 939,440,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,643,332.84 : 1,707,980,110.50 = 680,740,991.56 : x
  2. Step 2: Convert to fraction form
    1,237,643,332.84/1,707,980,110.50 = 680,740,991.56/x
  3. Step 3: Cross multiply
    1,237,643,332.84x = 1,707,980,110.50 × 680,740,991.56
  4. Step 4: Simplify right side
    1,237,643,332.84x = 1,162,692,073,986,528,256
  5. Step 5: Solve for x
    x = 1,162,692,073,986,528,256/1,237,643,332.84
  6. Step 6: Final answer
    x = 939,440,340.47

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1.5x scale

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.