Home / 78,586,459.02-107,663,832.95-75,641,056.26

Finding the Fourth Proportional to 78,586,459.02, 107,663,832.95 and 75,641,056.26

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Solution

The fourth proportional to 78,586,459.02, 107,663,832.95 and 75,641,056.26 is: 103,628,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,586,459.02 : 107,663,832.95 = 75,641,056.26 : x
  2. Step 2: Convert to fraction form
    78,586,459.02/107,663,832.95 = 75,641,056.26/x
  3. Step 3: Cross multiply
    78,586,459.02x = 107,663,832.95 × 75,641,056.26
  4. Step 4: Simplify right side
    78,586,459.02x = 8,143,806,045,544,752
  5. Step 5: Solve for x
    x = 8,143,806,045,544,752/78,586,459.02
  6. Step 6: Final answer
    x = 103,628,616.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.