Home / 12,780,828,021.40-19,171,242,032.10-12,780,828,021.40

Finding the Fourth Proportional to 12,780,828,021.40, 19,171,242,032.10 and 12,780,828,021.40

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Solution

The fourth proportional to 12,780,828,021.40, 19,171,242,032.10 and 12,780,828,021.40 is: 19,171,242,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,828,021.40 : 19,171,242,032.10 = 12,780,828,021.40 : x
  2. Step 2: Convert to fraction form
    12,780,828,021.40/19,171,242,032.10 = 12,780,828,021.40/x
  3. Step 3: Cross multiply
    12,780,828,021.40x = 19,171,242,032.10 × 12,780,828,021.40
  4. Step 4: Simplify right side
    12,780,828,021.40x = 245,024,347,368,905,146,368
  5. Step 5: Solve for x
    x = 245,024,347,368,905,146,368/12,780,828,021.40
  6. Step 6: Final answer
    x = 19,171,242,032.10

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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.