Home / 389,022,647.00-536,849,647.88-210,406,734.79

Finding the Fourth Proportional to 389,022,647.00, 536,849,647.88 and 210,406,734.79

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Solution

The fourth proportional to 389,022,647.00, 536,849,647.88 and 210,406,734.79 is: 290,360,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,647.00 : 536,849,647.88 = 210,406,734.79 : x
  2. Step 2: Convert to fraction form
    389,022,647.00/536,849,647.88 = 210,406,734.79/x
  3. Step 3: Cross multiply
    389,022,647.00x = 536,849,647.88 × 210,406,734.79
  4. Step 4: Simplify right side
    389,022,647.00x = 112,956,781,480,907,792
  5. Step 5: Solve for x
    x = 112,956,781,480,907,792/389,022,647.00
  6. Step 6: Final answer
    x = 290,360,425.93

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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.