Home / 13,358,776,787.94-18,441,388,459.99-7,718,901,690.72

Finding the Fourth Proportional to 13,358,776,787.94, 18,441,388,459.99 and 7,718,901,690.72

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Solution

The fourth proportional to 13,358,776,787.94, 18,441,388,459.99 and 7,718,901,690.72 is: 10,655,710,984.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358,776,787.94 : 18,441,388,459.99 = 7,718,901,690.72 : x
  2. Step 2: Convert to fraction form
    13,358,776,787.94/18,441,388,459.99 = 7,718,901,690.72/x
  3. Step 3: Cross multiply
    13,358,776,787.94x = 18,441,388,459.99 × 7,718,901,690.72
  4. Step 4: Simplify right side
    13,358,776,787.94x = 142,347,264,563,041,124,352
  5. Step 5: Solve for x
    x = 142,347,264,563,041,124,352/13,358,776,787.94
  6. Step 6: Final answer
    x = 10,655,710,984.82

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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.