Home / 13,120,989,307.60-18,106,953,453.48-7,406,476,839.76

Finding the Fourth Proportional to 13,120,989,307.60, 18,106,953,453.48 and 7,406,476,839.76

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Solution

The fourth proportional to 13,120,989,307.60, 18,106,953,453.48 and 7,406,476,839.76 is: 10,220,931,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,989,307.60 : 18,106,953,453.48 = 7,406,476,839.76 : x
  2. Step 2: Convert to fraction form
    13,120,989,307.60/18,106,953,453.48 = 7,406,476,839.76/x
  3. Step 3: Cross multiply
    13,120,989,307.60x = 18,106,953,453.48 × 7,406,476,839.76
  4. Step 4: Simplify right side
    13,120,989,307.60x = 134,108,731,391,811,977,216
  5. Step 5: Solve for x
    x = 134,108,731,391,811,977,216/13,120,989,307.60
  6. Step 6: Final answer
    x = 10,220,931,383.13

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1.5x scale

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.