Home / 30,611,738.67-42,242,605.02-19,009,054.86

Finding the Fourth Proportional to 30,611,738.67, 42,242,605.02 and 19,009,054.86

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Solution

The fourth proportional to 30,611,738.67, 42,242,605.02 and 19,009,054.86 is: 26,231,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,738.67 : 42,242,605.02 = 19,009,054.86 : x
  2. Step 2: Convert to fraction form
    30,611,738.67/42,242,605.02 = 19,009,054.86/x
  3. Step 3: Cross multiply
    30,611,738.67x = 42,242,605.02 × 19,009,054.86
  4. Step 4: Simplify right side
    30,611,738.67x = 802,991,996,254,491.38
  5. Step 5: Solve for x
    x = 802,991,996,254,491.38/30,611,738.67
  6. Step 6: Final answer
    x = 26,231,505.66

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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.