Home / 74,732,804.80-112,099,207.20-20,880,030.40

Finding the Fourth Proportional to 74,732,804.80, 112,099,207.20 and 20,880,030.40

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Solution

The fourth proportional to 74,732,804.80, 112,099,207.20 and 20,880,030.40 is: 31,320,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732,804.80 : 112,099,207.20 = 20,880,030.40 : x
  2. Step 2: Convert to fraction form
    74,732,804.80/112,099,207.20 = 20,880,030.40/x
  3. Step 3: Cross multiply
    74,732,804.80x = 112,099,207.20 × 20,880,030.40
  4. Step 4: Simplify right side
    74,732,804.80x = 2,340,634,854,151,899
  5. Step 5: Solve for x
    x = 2,340,634,854,151,899/74,732,804.80
  6. Step 6: Final answer
    x = 31,320,045.60

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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.