Home / 130,457,918.43-180,032,043.24-71,721,582.89

Finding the Fourth Proportional to 130,457,918.43, 180,032,043.24 and 71,721,582.89

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Solution

The fourth proportional to 130,457,918.43, 180,032,043.24 and 71,721,582.89 is: 98,975,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,457,918.43 : 180,032,043.24 = 71,721,582.89 : x
  2. Step 2: Convert to fraction form
    130,457,918.43/180,032,043.24 = 71,721,582.89/x
  3. Step 3: Cross multiply
    130,457,918.43x = 180,032,043.24 × 71,721,582.89
  4. Step 4: Simplify right side
    130,457,918.43x = 12,912,183,111,193,566
  5. Step 5: Solve for x
    x = 12,912,183,111,193,566/130,457,918.43
  6. Step 6: Final answer
    x = 98,975,848.05

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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.