Home / 15,779,386.40-21,775,341.51-8,810,171

Finding the Fourth Proportional to 15,779,386.40, 21,775,341.51 and 8,810,171

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Solution

The fourth proportional to 15,779,386.40, 21,775,341.51 and 8,810,171 is: 12,157,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,386.40 : 21,775,341.51 = 8,810,171 : x
  2. Step 2: Convert to fraction form
    15,779,386.40/21,775,341.51 = 8,810,171/x
  3. Step 3: Cross multiply
    15,779,386.40x = 21,775,341.51 × 8,810,171
  4. Step 4: Simplify right side
    15,779,386.40x = 191,844,482,286,498.22
  5. Step 5: Solve for x
    x = 191,844,482,286,498.22/15,779,386.40
  6. Step 6: Final answer
    x = 12,157,917.77

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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.