Home / 30,559,398.10-42,182,938.86-18,169,461.98

Finding the Fourth Proportional to 30,559,398.10, 42,182,938.86 and 18,169,461.98

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Solution

The fourth proportional to 30,559,398.10, 42,182,938.86 and 18,169,461.98 is: 25,080,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559,398.10 : 42,182,938.86 = 18,169,461.98 : x
  2. Step 2: Convert to fraction form
    30,559,398.10/42,182,938.86 = 18,169,461.98/x
  3. Step 3: Cross multiply
    30,559,398.10x = 42,182,938.86 × 18,169,461.98
  4. Step 4: Simplify right side
    30,559,398.10x = 766,441,303,821,434.50
  5. Step 5: Solve for x
    x = 766,441,303,821,434.50/30,559,398.10
  6. Step 6: Final answer
    x = 25,080,379.57

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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.