Home / 280,963,734.88-387,740,335.28-153,813,326.32

Finding the Fourth Proportional to 280,963,734.88, 387,740,335.28 and 153,813,326.32

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Solution

The fourth proportional to 280,963,734.88, 387,740,335.28 and 153,813,326.32 is: 212,268,073.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,963,734.88 : 387,740,335.28 = 153,813,326.32 : x
  2. Step 2: Convert to fraction form
    280,963,734.88/387,740,335.28 = 153,813,326.32/x
  3. Step 3: Cross multiply
    280,963,734.88x = 387,740,335.28 × 153,813,326.32
  4. Step 4: Simplify right side
    280,963,734.88x = 59,639,630,717,848,840
  5. Step 5: Solve for x
    x = 59,639,630,717,848,840/280,963,734.88
  6. Step 6: Final answer
    x = 212,268,073.47

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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.