Home / 20,173,101.34-30,259,547.96-7,878,312.22

Finding the Fourth Proportional to 20,173,101.34, 30,259,547.96 and 7,878,312.22

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Solution

The fourth proportional to 20,173,101.34, 30,259,547.96 and 7,878,312.22 is: 11,817,427.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173,101.34 : 30,259,547.96 = 7,878,312.22 : x
  2. Step 2: Convert to fraction form
    20,173,101.34/30,259,547.96 = 7,878,312.22/x
  3. Step 3: Cross multiply
    20,173,101.34x = 30,259,547.96 × 7,878,312.22
  4. Step 4: Simplify right side
    20,173,101.34x = 238,394,166,464,944.06
  5. Step 5: Solve for x
    x = 238,394,166,464,944.06/20,173,101.34
  6. Step 6: Final answer
    x = 11,817,427.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.