Home / 42,065,931.80-63,104,802.60-13,309,068.80

Finding the Fourth Proportional to 42,065,931.80, 63,104,802.60 and 13,309,068.80

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Solution

The fourth proportional to 42,065,931.80, 63,104,802.60 and 13,309,068.80 is: 19,965,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,065,931.80 : 63,104,802.60 = 13,309,068.80 : x
  2. Step 2: Convert to fraction form
    42,065,931.80/63,104,802.60 = 13,309,068.80/x
  3. Step 3: Cross multiply
    42,065,931.80x = 63,104,802.60 × 13,309,068.80
  4. Step 4: Simplify right side
    42,065,931.80x = 839,866,159,413,819
  5. Step 5: Solve for x
    x = 839,866,159,413,819/42,065,931.80
  6. Step 6: Final answer
    x = 19,965,471.43

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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.