Home / 12,780,828,002.70-19,171,242,004.05-9,681,464,090.70

Finding the Fourth Proportional to 12,780,828,002.70, 19,171,242,004.05 and 9,681,464,090.70

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Solution

The fourth proportional to 12,780,828,002.70, 19,171,242,004.05 and 9,681,464,090.70 is: 14,522,196,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,828,002.70 : 19,171,242,004.05 = 9,681,464,090.70 : x
  2. Step 2: Convert to fraction form
    12,780,828,002.70/19,171,242,004.05 = 9,681,464,090.70/x
  3. Step 3: Cross multiply
    12,780,828,002.70x = 19,171,242,004.05 × 9,681,464,090.70
  4. Step 4: Simplify right side
    12,780,828,002.70x = 185,605,691,036,329,574,400
  5. Step 5: Solve for x
    x = 185,605,691,036,329,574,400/12,780,828,002.70
  6. Step 6: Final answer
    x = 14,522,196,136.05

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1.5x scale

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.