Home / 15,598,532,688.90-21,525,975,109.98-8,915,672,742.72

Finding the Fourth Proportional to 15,598,532,688.90, 21,525,975,109.98 and 8,915,672,742.72

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Solution

The fourth proportional to 15,598,532,688.90, 21,525,975,109.98 and 8,915,672,742.72 is: 12,303,628,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598,532,688.90 : 21,525,975,109.98 = 8,915,672,742.72 : x
  2. Step 2: Convert to fraction form
    15,598,532,688.90/21,525,975,109.98 = 8,915,672,742.72/x
  3. Step 3: Cross multiply
    15,598,532,688.90x = 21,525,975,109.98 × 8,915,672,742.72
  4. Step 4: Simplify right side
    15,598,532,688.90x = 191,918,549,548,517,818,368
  5. Step 5: Solve for x
    x = 191,918,549,548,517,818,368/15,598,532,688.90
  6. Step 6: Final answer
    x = 12,303,628,384.55

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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.