Home / 110,688,320.80-165,808,532.40-76,648,103.20

Finding the Fourth Proportional to 110,688,320.80, 165,808,532.40 and 76,648,103.20

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Solution

The fourth proportional to 110,688,320.80, 165,808,532.40 and 76,648,103.20 is: 114,817,077.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,688,320.80 : 165,808,532.40 = 76,648,103.20 : x
  2. Step 2: Convert to fraction form
    110,688,320.80/165,808,532.40 = 76,648,103.20/x
  3. Step 3: Cross multiply
    110,688,320.80x = 165,808,532.40 × 76,648,103.20
  4. Step 4: Simplify right side
    110,688,320.80x = 12,708,909,502,835,744
  5. Step 5: Solve for x
    x = 12,708,909,502,835,744/110,688,320.80
  6. Step 6: Final answer
    x = 114,817,077.46

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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.