Home / 15,772,871.52-21,746,840.04-13,163,129.28

Finding the Fourth Proportional to 15,772,871.52, 21,746,840.04 and 13,163,129.28

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Solution

The fourth proportional to 15,772,871.52, 21,746,840.04 and 13,163,129.28 is: 18,148,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772,871.52 : 21,746,840.04 = 13,163,129.28 : x
  2. Step 2: Convert to fraction form
    15,772,871.52/21,746,840.04 = 13,163,129.28/x
  3. Step 3: Cross multiply
    15,772,871.52x = 21,746,840.04 × 13,163,129.28
  4. Step 4: Simplify right side
    15,772,871.52x = 286,256,466,878,000.38
  5. Step 5: Solve for x
    x = 286,256,466,878,000.38/15,772,871.52
  6. Step 6: Final answer
    x = 18,148,659.01

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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.