Home / 28,611,328.80-39,484,672.02-16,390,547.76

Finding the Fourth Proportional to 28,611,328.80, 39,484,672.02 and 16,390,547.76

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Solution

The fourth proportional to 28,611,328.80, 39,484,672.02 and 16,390,547.76 is: 22,619,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611,328.80 : 39,484,672.02 = 16,390,547.76 : x
  2. Step 2: Convert to fraction form
    28,611,328.80/39,484,672.02 = 16,390,547.76/x
  3. Step 3: Cross multiply
    28,611,328.80x = 39,484,672.02 × 16,390,547.76
  4. Step 4: Simplify right side
    28,611,328.80x = 647,175,402,531,745.75
  5. Step 5: Solve for x
    x = 647,175,402,531,745.75/28,611,328.80
  6. Step 6: Final answer
    x = 22,619,550.71

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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.