Home / 130,509,732.70-180,099,308.73-71,772,216.18

Finding the Fourth Proportional to 130,509,732.70, 180,099,308.73 and 71,772,216.18

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Solution

The fourth proportional to 130,509,732.70, 180,099,308.73 and 71,772,216.18 is: 99,043,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,509,732.70 : 180,099,308.73 = 71,772,216.18 : x
  2. Step 2: Convert to fraction form
    130,509,732.70/180,099,308.73 = 71,772,216.18/x
  3. Step 3: Cross multiply
    130,509,732.70x = 180,099,308.73 × 71,772,216.18
  4. Step 4: Simplify right side
    130,509,732.70x = 12,926,126,520,038,122
  5. Step 5: Solve for x
    x = 12,926,126,520,038,122/130,509,732.70
  6. Step 6: Final answer
    x = 99,043,391.27

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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.