Home / 15,870,420,875.38-21,901,184,382.88-8,733,834,687.44

Finding the Fourth Proportional to 15,870,420,875.38, 21,901,184,382.88 and 8,733,834,687.44

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Solution

The fourth proportional to 15,870,420,875.38, 21,901,184,382.88 and 8,733,834,687.44 is: 12,052,693,835.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,420,875.38 : 21,901,184,382.88 = 8,733,834,687.44 : x
  2. Step 2: Convert to fraction form
    15,870,420,875.38/21,901,184,382.88 = 8,733,834,687.44/x
  3. Step 3: Cross multiply
    15,870,420,875.38x = 21,901,184,382.88 × 8,733,834,687.44
  4. Step 4: Simplify right side
    15,870,420,875.38x = 191,281,323,859,161,808,896
  5. Step 5: Solve for x
    x = 191,281,323,859,161,808,896/15,870,420,875.38
  6. Step 6: Final answer
    x = 12,052,693,835.99

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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.