Home / 72,250,666.68-99,705,972.06-39,210,907.08

Finding the Fourth Proportional to 72,250,666.68, 99,705,972.06 and 39,210,907.08

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Solution

The fourth proportional to 72,250,666.68, 99,705,972.06 and 39,210,907.08 is: 54,111,080.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,250,666.68 : 99,705,972.06 = 39,210,907.08 : x
  2. Step 2: Convert to fraction form
    72,250,666.68/99,705,972.06 = 39,210,907.08/x
  3. Step 3: Cross multiply
    72,250,666.68x = 99,705,972.06 × 39,210,907.08
  4. Step 4: Simplify right side
    72,250,666.68x = 3,909,561,605,765,736
  5. Step 5: Solve for x
    x = 3,909,561,605,765,736/72,250,666.68
  6. Step 6: Final answer
    x = 54,111,080.01

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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.