Home / 1,155,446,870.31-1,594,516,680.99-660,420,207.63

Finding the Fourth Proportional to 1,155,446,870.31, 1,594,516,680.99 and 660,420,207.63

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Solution

The fourth proportional to 1,155,446,870.31, 1,594,516,680.99 and 660,420,207.63 is: 911,379,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,446,870.31 : 1,594,516,680.99 = 660,420,207.63 : x
  2. Step 2: Convert to fraction form
    1,155,446,870.31/1,594,516,680.99 = 660,420,207.63/x
  3. Step 3: Cross multiply
    1,155,446,870.31x = 1,594,516,680.99 × 660,420,207.63
  4. Step 4: Simplify right side
    1,155,446,870.31x = 1,053,051,037,528,914,304
  5. Step 5: Solve for x
    x = 1,053,051,037,528,914,304/1,155,446,870.31
  6. Step 6: Final answer
    x = 911,379,886.51

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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.