Home / 130,507,722.63-180,097,065.81-71,770,387.76

Finding the Fourth Proportional to 130,507,722.63, 180,097,065.81 and 71,770,387.76

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Solution

The fourth proportional to 130,507,722.63, 180,097,065.81 and 71,770,387.76 is: 99,041,160.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,722.63 : 180,097,065.81 = 71,770,387.76 : x
  2. Step 2: Convert to fraction form
    130,507,722.63/180,097,065.81 = 71,770,387.76/x
  3. Step 3: Cross multiply
    130,507,722.63x = 180,097,065.81 × 71,770,387.76
  4. Step 4: Simplify right side
    130,507,722.63x = 12,925,636,246,721,452
  5. Step 5: Solve for x
    x = 12,925,636,246,721,452/130,507,722.63
  6. Step 6: Final answer
    x = 99,041,160.07

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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.