Home / 72,029,547.92-99,400,835.36-38,989,694.87

Finding the Fourth Proportional to 72,029,547.92, 99,400,835.36 and 38,989,694.87

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Solution

The fourth proportional to 72,029,547.92, 99,400,835.36 and 38,989,694.87 is: 53,805,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029,547.92 : 99,400,835.36 = 38,989,694.87 : x
  2. Step 2: Convert to fraction form
    72,029,547.92/99,400,835.36 = 38,989,694.87/x
  3. Step 3: Cross multiply
    72,029,547.92x = 99,400,835.36 × 38,989,694.87
  4. Step 4: Simplify right side
    72,029,547.92x = 3,875,608,240,403,408.50
  5. Step 5: Solve for x
    x = 3,875,608,240,403,408.50/72,029,547.92
  6. Step 6: Final answer
    x = 53,805,810.98

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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.