Home / 30,699,985.68-42,385,100.02-19,542,774.00

Finding the Fourth Proportional to 30,699,985.68, 42,385,100.02 and 19,542,774.00

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Solution

The fourth proportional to 30,699,985.68, 42,385,100.02 and 19,542,774.00 is: 26,981,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699,985.68 : 42,385,100.02 = 19,542,774.00 : x
  2. Step 2: Convert to fraction form
    30,699,985.68/42,385,100.02 = 19,542,774.00/x
  3. Step 3: Cross multiply
    30,699,985.68x = 42,385,100.02 × 19,542,774.00
  4. Step 4: Simplify right side
    30,699,985.68x = 828,322,430,777,442.12
  5. Step 5: Solve for x
    x = 828,322,430,777,442.12/30,699,985.68
  6. Step 6: Final answer
    x = 26,981,199.26

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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.