Home / 120,042,371.01-165,607,745.69-80,362,685.93

Finding the Fourth Proportional to 120,042,371.01, 165,607,745.69 and 80,362,685.93

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Solution

The fourth proportional to 120,042,371.01, 165,607,745.69 and 80,362,685.93 is: 110,866,547.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042,371.01 : 165,607,745.69 = 80,362,685.93 : x
  2. Step 2: Convert to fraction form
    120,042,371.01/165,607,745.69 = 80,362,685.93/x
  3. Step 3: Cross multiply
    120,042,371.01x = 165,607,745.69 × 80,362,685.93
  4. Step 4: Simplify right side
    120,042,371.01x = 13,308,683,254,460,782
  5. Step 5: Solve for x
    x = 13,308,683,254,460,782/120,042,371.01
  6. Step 6: Final answer
    x = 110,866,547.72

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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.