Home / 21,042,184.05-31,572,368.98-11,315,428.35

Finding the Fourth Proportional to 21,042,184.05, 31,572,368.98 and 11,315,428.35

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Solution

The fourth proportional to 21,042,184.05, 31,572,368.98 and 11,315,428.35 is: 16,978,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,184.05 : 31,572,368.98 = 11,315,428.35 : x
  2. Step 2: Convert to fraction form
    21,042,184.05/31,572,368.98 = 11,315,428.35/x
  3. Step 3: Cross multiply
    21,042,184.05x = 31,572,368.98 × 11,315,428.35
  4. Step 4: Simplify right side
    21,042,184.05x = 357,254,878,949,916.94
  5. Step 5: Solve for x
    x = 357,254,878,949,916.94/21,042,184.05
  6. Step 6: Final answer
    x = 16,978,032.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.