Home / 30,547,981.61-42,155,918.25-16,609,336.53

Finding the Fourth Proportional to 30,547,981.61, 42,155,918.25 and 16,609,336.53

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Solution

The fourth proportional to 30,547,981.61, 42,155,918.25 and 16,609,336.53 is: 22,920,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547,981.61 : 42,155,918.25 = 16,609,336.53 : x
  2. Step 2: Convert to fraction form
    30,547,981.61/42,155,918.25 = 16,609,336.53/x
  3. Step 3: Cross multiply
    30,547,981.61x = 42,155,918.25 × 16,609,336.53
  4. Step 4: Simplify right side
    30,547,981.61x = 700,181,832,945,418.62
  5. Step 5: Solve for x
    x = 700,181,832,945,418.62/30,547,981.61
  6. Step 6: Final answer
    x = 22,920,723.27

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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.