Home / 71,977,586,125.38-99,329,400,670.53-39,862,275,008.95

Finding the Fourth Proportional to 71,977,586,125.38, 99,329,400,670.53 and 39,862,275,008.95

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Solution

The fourth proportional to 71,977,586,125.38, 99,329,400,670.53 and 39,862,275,008.95 is: 55,010,123,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,977,586,125.38 : 99,329,400,670.53 = 39,862,275,008.95 : x
  2. Step 2: Convert to fraction form
    71,977,586,125.38/99,329,400,670.53 = 39,862,275,008.95/x
  3. Step 3: Cross multiply
    71,977,586,125.38x = 99,329,400,670.53 × 39,862,275,008.95
  4. Step 4: Simplify right side
    71,977,586,125.38x = 3,959,495,886,002,848,792,576
  5. Step 5: Solve for x
    x = 3,959,495,886,002,848,792,576/71,977,586,125.38
  6. Step 6: Final answer
    x = 55,010,123,277.90

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1.5x scale

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.