Home / 143,235,030.60-197,664,344.10-78,044,934.60

Finding the Fourth Proportional to 143,235,030.60, 197,664,344.10 and 78,044,934.60

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Solution

The fourth proportional to 143,235,030.60, 197,664,344.10 and 78,044,934.60 is: 107,702,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,235,030.60 : 197,664,344.10 = 78,044,934.60 : x
  2. Step 2: Convert to fraction form
    143,235,030.60/197,664,344.10 = 78,044,934.60/x
  3. Step 3: Cross multiply
    143,235,030.60x = 197,664,344.10 × 78,044,934.60
  4. Step 4: Simplify right side
    143,235,030.60x = 15,426,700,808,036,394
  5. Step 5: Solve for x
    x = 15,426,700,808,036,394/143,235,030.60
  6. Step 6: Final answer
    x = 107,702,010.77

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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.