Home / 14,255,109.89-19,688,289.20-9,663,459.65

Finding the Fourth Proportional to 14,255,109.89, 19,688,289.20 and 9,663,459.65

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Solution

The fourth proportional to 14,255,109.89, 19,688,289.20 and 9,663,459.65 is: 13,346,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255,109.89 : 19,688,289.20 = 9,663,459.65 : x
  2. Step 2: Convert to fraction form
    14,255,109.89/19,688,289.20 = 9,663,459.65/x
  3. Step 3: Cross multiply
    14,255,109.89x = 19,688,289.20 × 9,663,459.65
  4. Step 4: Simplify right side
    14,255,109.89x = 190,256,988,225,041.09
  5. Step 5: Solve for x
    x = 190,256,988,225,041.09/14,255,109.89
  6. Step 6: Final answer
    x = 13,346,581.66

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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.