Home / 8,178,938,701.86-12,251,227,161.07-5,189,462,993.93

Finding the Fourth Proportional to 8,178,938,701.86, 12,251,227,161.07 and 5,189,462,993.93

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Solution

The fourth proportional to 8,178,938,701.86, 12,251,227,161.07 and 5,189,462,993.93 is: 7,773,293,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,938,701.86 : 12,251,227,161.07 = 5,189,462,993.93 : x
  2. Step 2: Convert to fraction form
    8,178,938,701.86/12,251,227,161.07 = 5,189,462,993.93/x
  3. Step 3: Cross multiply
    8,178,938,701.86x = 12,251,227,161.07 × 5,189,462,993.93
  4. Step 4: Simplify right side
    8,178,938,701.86x = 63,577,289,982,602,862,592
  5. Step 5: Solve for x
    x = 63,577,289,982,602,862,592/8,178,938,701.86
  6. Step 6: Final answer
    x = 7,773,293,369.73

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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.