Home / 28,870,237.96-39,840,927.51-15,817,991.38

Finding the Fourth Proportional to 28,870,237.96, 39,840,927.51 and 15,817,991.38

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Solution

The fourth proportional to 28,870,237.96, 39,840,927.51 and 15,817,991.38 is: 21,828,827.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,237.96 : 39,840,927.51 = 15,817,991.38 : x
  2. Step 2: Convert to fraction form
    28,870,237.96/39,840,927.51 = 15,817,991.38/x
  3. Step 3: Cross multiply
    28,870,237.96x = 39,840,927.51 × 15,817,991.38
  4. Step 4: Simplify right side
    28,870,237.96x = 630,203,447,924,384.88
  5. Step 5: Solve for x
    x = 630,203,447,924,384.88/28,870,237.96
  6. Step 6: Final answer
    x = 21,828,827.63

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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.