Home / 28,611,238.42-39,484,547.30-16,390,457.38

Finding the Fourth Proportional to 28,611,238.42, 39,484,547.30 and 16,390,457.38

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Solution

The fourth proportional to 28,611,238.42, 39,484,547.30 and 16,390,457.38 is: 22,619,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611,238.42 : 39,484,547.30 = 16,390,457.38 : x
  2. Step 2: Convert to fraction form
    28,611,238.42/39,484,547.30 = 16,390,457.38/x
  3. Step 3: Cross multiply
    28,611,238.42x = 39,484,547.30 × 16,390,457.38
  4. Step 4: Simplify right side
    28,611,238.42x = 647,169,789,409,869.12
  5. Step 5: Solve for x
    x = 647,169,789,409,869.12/28,611,238.42
  6. Step 6: Final answer
    x = 22,619,425.98

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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.