Home / 726,772,445.80-1,090,300,386.30-312,248,465.80

Finding the Fourth Proportional to 726,772,445.80, 1,090,300,386.30 and 312,248,465.80

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Solution

The fourth proportional to 726,772,445.80, 1,090,300,386.30 and 312,248,465.80 is: 468,433,585.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,772,445.80 : 1,090,300,386.30 = 312,248,465.80 : x
  2. Step 2: Convert to fraction form
    726,772,445.80/1,090,300,386.30 = 312,248,465.80/x
  3. Step 3: Cross multiply
    726,772,445.80x = 1,090,300,386.30 × 312,248,465.80
  4. Step 4: Simplify right side
    726,772,445.80x = 340,444,622,883,322,368
  5. Step 5: Solve for x
    x = 340,444,622,883,322,368/726,772,445.80
  6. Step 6: Final answer
    x = 468,433,585.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.