Home / 15,547,444.48-21,455,417.28-8,671,921.12

Finding the Fourth Proportional to 15,547,444.48, 21,455,417.28 and 8,671,921.12

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Solution

The fourth proportional to 15,547,444.48, 21,455,417.28 and 8,671,921.12 is: 11,967,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547,444.48 : 21,455,417.28 = 8,671,921.12 : x
  2. Step 2: Convert to fraction form
    15,547,444.48/21,455,417.28 = 8,671,921.12/x
  3. Step 3: Cross multiply
    15,547,444.48x = 21,455,417.28 × 8,671,921.12
  4. Step 4: Simplify right side
    15,547,444.48x = 186,059,686,248,844.94
  5. Step 5: Solve for x
    x = 186,059,686,248,844.94/15,547,444.48
  6. Step 6: Final answer
    x = 11,967,219.85

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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.