Home / 85,547,404.30-128,226,628.05-47,236,413.10

Finding the Fourth Proportional to 85,547,404.30, 128,226,628.05 and 47,236,413.10

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Solution

The fourth proportional to 85,547,404.30, 128,226,628.05 and 47,236,413.10 is: 70,802,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,404.30 : 128,226,628.05 = 47,236,413.10 : x
  2. Step 2: Convert to fraction form
    85,547,404.30/128,226,628.05 = 47,236,413.10/x
  3. Step 3: Cross multiply
    85,547,404.30x = 128,226,628.05 × 47,236,413.10
  4. Step 4: Simplify right side
    85,547,404.30x = 6,056,965,972,989,848
  5. Step 5: Solve for x
    x = 6,056,965,972,989,848/85,547,404.30
  6. Step 6: Final answer
    x = 70,802,451.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.