Home / 12,913,824,370.88-17,818,919,592.36-7,196,860,191.80

Finding the Fourth Proportional to 12,913,824,370.88, 17,818,919,592.36 and 7,196,860,191.80

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Solution

The fourth proportional to 12,913,824,370.88, 17,818,919,592.36 and 7,196,860,191.80 is: 9,930,464,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,824,370.88 : 17,818,919,592.36 = 7,196,860,191.80 : x
  2. Step 2: Convert to fraction form
    12,913,824,370.88/17,818,919,592.36 = 7,196,860,191.80/x
  3. Step 3: Cross multiply
    12,913,824,370.88x = 17,818,919,592.36 × 7,196,860,191.80
  4. Step 4: Simplify right side
    12,913,824,370.88x = 128,240,273,075,140,771,840
  5. Step 5: Solve for x
    x = 128,240,273,075,140,771,840/12,913,824,370.88
  6. Step 6: Final answer
    x = 9,930,464,391.66

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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.