Home / 15,621,251,256.04-21,556,960,085.50-9,191,487,690.53

Finding the Fourth Proportional to 15,621,251,256.04, 21,556,960,085.50 and 9,191,487,690.53

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Solution

The fourth proportional to 15,621,251,256.04, 21,556,960,085.50 and 9,191,487,690.53 is: 12,684,037,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,251,256.04 : 21,556,960,085.50 = 9,191,487,690.53 : x
  2. Step 2: Convert to fraction form
    15,621,251,256.04/21,556,960,085.50 = 9,191,487,690.53/x
  3. Step 3: Cross multiply
    15,621,251,256.04x = 21,556,960,085.50 × 9,191,487,690.53
  4. Step 4: Simplify right side
    15,621,251,256.04x = 198,140,533,271,046,356,992
  5. Step 5: Solve for x
    x = 198,140,533,271,046,356,992/15,621,251,256.04
  6. Step 6: Final answer
    x = 12,684,037,278.67

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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.