Home / 120,034,947.40-165,648,401.49-65,030,803.90

Finding the Fourth Proportional to 120,034,947.40, 165,648,401.49 and 65,030,803.90

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Solution

The fourth proportional to 120,034,947.40, 165,648,401.49 and 65,030,803.90 is: 89,742,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,034,947.40 : 165,648,401.49 = 65,030,803.90 : x
  2. Step 2: Convert to fraction form
    120,034,947.40/165,648,401.49 = 65,030,803.90/x
  3. Step 3: Cross multiply
    120,034,947.40x = 165,648,401.49 × 65,030,803.90
  4. Step 4: Simplify right side
    120,034,947.40x = 10,772,248,713,474,402
  5. Step 5: Solve for x
    x = 10,772,248,713,474,402/120,034,947.40
  6. Step 6: Final answer
    x = 89,742,603.69

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1.5x scale

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.