Home / 539,430,340.40-744,413,870.96-291,911,694.64

Finding the Fourth Proportional to 539,430,340.40, 744,413,870.96 and 291,911,694.64

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Solution

The fourth proportional to 539,430,340.40, 744,413,870.96 and 291,911,694.64 is: 402,838,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,430,340.40 : 744,413,870.96 = 291,911,694.64 : x
  2. Step 2: Convert to fraction form
    539,430,340.40/744,413,870.96 = 291,911,694.64/x
  3. Step 3: Cross multiply
    539,430,340.40x = 744,413,870.96 × 291,911,694.64
  4. Step 4: Simplify right side
    539,430,340.40x = 217,303,114,585,455,872
  5. Step 5: Solve for x
    x = 217,303,114,585,455,872/539,430,340.40
  6. Step 6: Final answer
    x = 402,838,139.26

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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.