Home / 15,128,943-20,877,941.34-9,696,435

Finding the Fourth Proportional to 15,128,943, 20,877,941.34 and 9,696,435

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Solution

The fourth proportional to 15,128,943, 20,877,941.34 and 9,696,435 is: 13,381,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,943 : 20,877,941.34 = 9,696,435 : x
  2. Step 2: Convert to fraction form
    15,128,943/20,877,941.34 = 9,696,435/x
  3. Step 3: Cross multiply
    15,128,943x = 20,877,941.34 × 9,696,435
  4. Step 4: Simplify right side
    15,128,943x = 202,441,601,137,122.91
  5. Step 5: Solve for x
    x = 202,441,601,137,122.91/15,128,943
  6. Step 6: Final answer
    x = 13,381,080.30

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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.