Home / 10,422,053.60-15,633,080.40-8,742,437.60

Finding the Fourth Proportional to 10,422,053.60, 15,633,080.40 and 8,742,437.60

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Solution

The fourth proportional to 10,422,053.60, 15,633,080.40 and 8,742,437.60 is: 13,113,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422,053.60 : 15,633,080.40 = 8,742,437.60 : x
  2. Step 2: Convert to fraction form
    10,422,053.60/15,633,080.40 = 8,742,437.60/x
  3. Step 3: Cross multiply
    10,422,053.60x = 15,633,080.40 × 8,742,437.60
  4. Step 4: Simplify right side
    10,422,053.60x = 136,671,229,892,783.03
  5. Step 5: Solve for x
    x = 136,671,229,892,783.03/10,422,053.60
  6. Step 6: Final answer
    x = 13,113,656.40

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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.