Home / 142,477,643.20-213,716,464.80-97,128,011.20

Finding the Fourth Proportional to 142,477,643.20, 213,716,464.80 and 97,128,011.20

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Solution

The fourth proportional to 142,477,643.20, 213,716,464.80 and 97,128,011.20 is: 145,692,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,477,643.20 : 213,716,464.80 = 97,128,011.20 : x
  2. Step 2: Convert to fraction form
    142,477,643.20/213,716,464.80 = 97,128,011.20/x
  3. Step 3: Cross multiply
    142,477,643.20x = 213,716,464.80 × 97,128,011.20
  4. Step 4: Simplify right side
    142,477,643.20x = 20,757,855,186,718,808
  5. Step 5: Solve for x
    x = 20,757,855,186,718,808/142,477,643.20
  6. Step 6: Final answer
    x = 145,692,016.80

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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.