Home / 30,547,981.70-42,155,918.36-16,609,336.61

Finding the Fourth Proportional to 30,547,981.70, 42,155,918.36 and 16,609,336.61

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Solution

The fourth proportional to 30,547,981.70, 42,155,918.36 and 16,609,336.61 is: 22,920,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547,981.70 : 42,155,918.36 = 16,609,336.61 : x
  2. Step 2: Convert to fraction form
    30,547,981.70/42,155,918.36 = 16,609,336.61/x
  3. Step 3: Cross multiply
    30,547,981.70x = 42,155,918.36 × 16,609,336.61
  4. Step 4: Simplify right side
    30,547,981.70x = 700,181,837,913,377.88
  5. Step 5: Solve for x
    x = 700,181,837,913,377.88/30,547,981.70
  6. Step 6: Final answer
    x = 22,920,723.37

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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.