Home / 3,905,681,492.84-5,389,836,364.08-2,121,536,362.55

Finding the Fourth Proportional to 3,905,681,492.84, 5,389,836,364.08 and 2,121,536,362.55

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Solution

The fourth proportional to 3,905,681,492.84, 5,389,836,364.08 and 2,121,536,362.55 is: 2,927,717,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905,681,492.84 : 5,389,836,364.08 = 2,121,536,362.55 : x
  2. Step 2: Convert to fraction form
    3,905,681,492.84/5,389,836,364.08 = 2,121,536,362.55/x
  3. Step 3: Cross multiply
    3,905,681,492.84x = 5,389,836,364.08 × 2,121,536,362.55
  4. Step 4: Simplify right side
    3,905,681,492.84x = 11,434,733,834,563,051,520
  5. Step 5: Solve for x
    x = 11,434,733,834,563,051,520/3,905,681,492.84
  6. Step 6: Final answer
    x = 2,927,717,955.38

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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.