Home / 13,578,400.47-18,733,607.01-7,697,404.16

Finding the Fourth Proportional to 13,578,400.47, 18,733,607.01 and 7,697,404.16

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Solution

The fourth proportional to 13,578,400.47, 18,733,607.01 and 7,697,404.16 is: 10,619,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,400.47 : 18,733,607.01 = 7,697,404.16 : x
  2. Step 2: Convert to fraction form
    13,578,400.47/18,733,607.01 = 7,697,404.16/x
  3. Step 3: Cross multiply
    13,578,400.47x = 18,733,607.01 × 7,697,404.16
  4. Step 4: Simplify right side
    13,578,400.47x = 144,200,144,445,258.12
  5. Step 5: Solve for x
    x = 144,200,144,445,258.12/13,578,400.47
  6. Step 6: Final answer
    x = 10,619,818.20

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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.