Home / 130,507,756.11-180,097,111.94-71,770,421.22

Finding the Fourth Proportional to 130,507,756.11, 180,097,111.94 and 71,770,421.22

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Solution

The fourth proportional to 130,507,756.11, 180,097,111.94 and 71,770,421.22 is: 99,041,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,756.11 : 180,097,111.94 = 71,770,421.22 : x
  2. Step 2: Convert to fraction form
    130,507,756.11/180,097,111.94 = 71,770,421.22/x
  3. Step 3: Cross multiply
    130,507,756.11x = 180,097,111.94 × 71,770,421.22
  4. Step 4: Simplify right side
    130,507,756.11x = 12,925,645,584,080,440
  5. Step 5: Solve for x
    x = 12,925,645,584,080,440/130,507,756.11
  6. Step 6: Final answer
    x = 99,041,206.20

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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.