Home / 13,710,983.16-18,920,886.12-7,516,043.22

Finding the Fourth Proportional to 13,710,983.16, 18,920,886.12 and 7,516,043.22

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Solution

The fourth proportional to 13,710,983.16, 18,920,886.12 and 7,516,043.22 is: 10,371,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710,983.16 : 18,920,886.12 = 7,516,043.22 : x
  2. Step 2: Convert to fraction form
    13,710,983.16/18,920,886.12 = 7,516,043.22/x
  3. Step 3: Cross multiply
    13,710,983.16x = 18,920,886.12 × 7,516,043.22
  4. Step 4: Simplify right side
    13,710,983.16x = 142,210,197,838,618.09
  5. Step 5: Solve for x
    x = 142,210,197,838,618.09/13,710,983.16
  6. Step 6: Final answer
    x = 10,371,991.28

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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.