Home / 278,462,420.24-384,255,643.52-160,995,320.51

Finding the Fourth Proportional to 278,462,420.24, 384,255,643.52 and 160,995,320.51

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Solution

The fourth proportional to 278,462,420.24, 384,255,643.52 and 160,995,320.51 is: 222,160,535.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,462,420.24 : 384,255,643.52 = 160,995,320.51 : x
  2. Step 2: Convert to fraction form
    278,462,420.24/384,255,643.52 = 160,995,320.51/x
  3. Step 3: Cross multiply
    278,462,420.24x = 384,255,643.52 × 160,995,320.51
  4. Step 4: Simplify right side
    278,462,420.24x = 61,863,360,484,759,912
  5. Step 5: Solve for x
    x = 61,863,360,484,759,912/278,462,420.24
  6. Step 6: Final answer
    x = 222,160,535.82

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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.