Home / 13,358,776,787.81-18,441,388,459.82-7,718,901,690.59

Finding the Fourth Proportional to 13,358,776,787.81, 18,441,388,459.82 and 7,718,901,690.59

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Solution

The fourth proportional to 13,358,776,787.81, 18,441,388,459.82 and 7,718,901,690.59 is: 10,655,710,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358,776,787.81 : 18,441,388,459.82 = 7,718,901,690.59 : x
  2. Step 2: Convert to fraction form
    13,358,776,787.81/18,441,388,459.82 = 7,718,901,690.59/x
  3. Step 3: Cross multiply
    13,358,776,787.81x = 18,441,388,459.82 × 7,718,901,690.59
  4. Step 4: Simplify right side
    13,358,776,787.81x = 142,347,264,559,339,012,096
  5. Step 5: Solve for x
    x = 142,347,264,559,339,012,096/13,358,776,787.81
  6. Step 6: Final answer
    x = 10,655,710,984.65

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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.