Home / 208,049,646.56-312,012,189.54-130,444,482.51

Finding the Fourth Proportional to 208,049,646.56, 312,012,189.54 and 130,444,482.51

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Solution

The fourth proportional to 208,049,646.56, 312,012,189.54 and 130,444,482.51 is: 195,627,674.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,049,646.56 : 312,012,189.54 = 130,444,482.51 : x
  2. Step 2: Convert to fraction form
    208,049,646.56/312,012,189.54 = 130,444,482.51/x
  3. Step 3: Cross multiply
    208,049,646.56x = 312,012,189.54 × 130,444,482.51
  4. Step 4: Simplify right side
    208,049,646.56x = 40,700,268,601,357,336
  5. Step 5: Solve for x
    x = 40,700,268,601,357,336/208,049,646.56
  6. Step 6: Final answer
    x = 195,627,674.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.