Home / 130,507,808.16-180,105,400.62-71,775,015.60

Finding the Fourth Proportional to 130,507,808.16, 180,105,400.62 and 71,775,015.60

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Solution

The fourth proportional to 130,507,808.16, 180,105,400.62 and 71,775,015.60 is: 99,052,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507,808.16 : 180,105,400.62 = 71,775,015.60 : x
  2. Step 2: Convert to fraction form
    130,507,808.16/180,105,400.62 = 71,775,015.60/x
  3. Step 3: Cross multiply
    130,507,808.16x = 180,105,400.62 × 71,775,015.60
  4. Step 4: Simplify right side
    130,507,808.16x = 12,927,067,939,144,748
  5. Step 5: Solve for x
    x = 12,927,067,939,144,748/130,507,808.16
  6. Step 6: Final answer
    x = 99,052,065.32

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1.5x scale

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.