Home / 130,457,919.18-180,032,044.28-71,721,583.64

Finding the Fourth Proportional to 130,457,919.18, 180,032,044.28 and 71,721,583.64

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Solution

The fourth proportional to 130,457,919.18, 180,032,044.28 and 71,721,583.64 is: 98,975,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,457,919.18 : 180,032,044.28 = 71,721,583.64 : x
  2. Step 2: Convert to fraction form
    130,457,919.18/180,032,044.28 = 71,721,583.64/x
  3. Step 3: Cross multiply
    130,457,919.18x = 180,032,044.28 × 71,721,583.64
  4. Step 4: Simplify right side
    130,457,919.18x = 12,912,183,320,449,436
  5. Step 5: Solve for x
    x = 12,912,183,320,449,436/130,457,919.18
  6. Step 6: Final answer
    x = 98,975,849.08

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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.