Home / 90,382,701-124,788,187.38-69,437,430.12

Finding the Fourth Proportional to 90,382,701, 124,788,187.38 and 69,437,430.12

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Solution

The fourth proportional to 90,382,701, 124,788,187.38 and 69,437,430.12 is: 95,869,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,382,701 : 124,788,187.38 = 69,437,430.12 : x
  2. Step 2: Convert to fraction form
    90,382,701/124,788,187.38 = 69,437,430.12/x
  3. Step 3: Cross multiply
    90,382,701x = 124,788,187.38 × 69,437,430.12
  4. Step 4: Simplify right side
    90,382,701x = 8,664,971,041,000,216
  5. Step 5: Solve for x
    x = 8,664,971,041,000,216/90,382,701
  6. Step 6: Final answer
    x = 95,869,795.27

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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.