Home / 130,802,254.53-180,507,012.08-72,064,919.65

Finding the Fourth Proportional to 130,802,254.53, 180,507,012.08 and 72,064,919.65

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Solution

The fourth proportional to 130,802,254.53, 180,507,012.08 and 72,064,919.65 is: 99,449,534.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,802,254.53 : 180,507,012.08 = 72,064,919.65 : x
  2. Step 2: Convert to fraction form
    130,802,254.53/180,507,012.08 = 72,064,919.65/x
  3. Step 3: Cross multiply
    130,802,254.53x = 180,507,012.08 × 72,064,919.65
  4. Step 4: Simplify right side
    130,802,254.53x = 13,008,223,321,871,784
  5. Step 5: Solve for x
    x = 13,008,223,321,871,784/130,802,254.53
  6. Step 6: Final answer
    x = 99,449,534.48

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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.