Home / 20,364,349,457.87-28,105,248,742.72-12,335,454,420.11

Finding the Fourth Proportional to 20,364,349,457.87, 28,105,248,742.72 and 12,335,454,420.11

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Solution

The fourth proportional to 20,364,349,457.87, 28,105,248,742.72 and 12,335,454,420.11 is: 17,024,409,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364,349,457.87 : 28,105,248,742.72 = 12,335,454,420.11 : x
  2. Step 2: Convert to fraction form
    20,364,349,457.87/28,105,248,742.72 = 12,335,454,420.11/x
  3. Step 3: Cross multiply
    20,364,349,457.87x = 28,105,248,742.72 × 12,335,454,420.11
  4. Step 4: Simplify right side
    20,364,349,457.87x = 346,691,014,831,535,947,776
  5. Step 5: Solve for x
    x = 346,691,014,831,535,947,776/20,364,349,457.87
  6. Step 6: Final answer
    x = 17,024,409,031.52

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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.