Home / 28,128,940.02-42,164,638.16-19,031,998.77

Finding the Fourth Proportional to 28,128,940.02, 42,164,638.16 and 19,031,998.77

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Solution

The fourth proportional to 28,128,940.02, 42,164,638.16 and 19,031,998.77 is: 28,528,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128,940.02 : 42,164,638.16 = 19,031,998.77 : x
  2. Step 2: Convert to fraction form
    28,128,940.02/42,164,638.16 = 19,031,998.77/x
  3. Step 3: Cross multiply
    28,128,940.02x = 42,164,638.16 × 19,031,998.77
  4. Step 4: Simplify right side
    28,128,940.02x = 802,477,341,503,455.12
  5. Step 5: Solve for x
    x = 802,477,341,503,455.12/28,128,940.02
  6. Step 6: Final answer
    x = 28,528,531.15

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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.