Home / 89,249,123.28-133,272,679.94-72,886,866.66

Finding the Fourth Proportional to 89,249,123.28, 133,272,679.94 and 72,886,866.66

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Solution

The fourth proportional to 89,249,123.28, 133,272,679.94 and 72,886,866.66 is: 108,839,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,249,123.28 : 133,272,679.94 = 72,886,866.66 : x
  2. Step 2: Convert to fraction form
    89,249,123.28/133,272,679.94 = 72,886,866.66/x
  3. Step 3: Cross multiply
    89,249,123.28x = 133,272,679.94 × 72,886,866.66
  4. Step 4: Simplify right side
    89,249,123.28x = 9,713,828,052,207,636
  5. Step 5: Solve for x
    x = 9,713,828,052,207,636/89,249,123.28
  6. Step 6: Final answer
    x = 108,839,478.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.