Home / 15,870,420,852.66-21,901,184,351.55-8,733,834,664.72

Finding the Fourth Proportional to 15,870,420,852.66, 21,901,184,351.55 and 8,733,834,664.72

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Solution

The fourth proportional to 15,870,420,852.66, 21,901,184,351.55 and 8,733,834,664.72 is: 12,052,693,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,420,852.66 : 21,901,184,351.55 = 8,733,834,664.72 : x
  2. Step 2: Convert to fraction form
    15,870,420,852.66/21,901,184,351.55 = 8,733,834,664.72/x
  3. Step 3: Cross multiply
    15,870,420,852.66x = 21,901,184,351.55 × 8,733,834,664.72
  4. Step 4: Simplify right side
    15,870,420,852.66x = 191,281,323,087,892,185,088
  5. Step 5: Solve for x
    x = 191,281,323,087,892,185,088/15,870,420,852.66
  6. Step 6: Final answer
    x = 12,052,693,804.64

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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.