Home / 15,598,532,689.90-21,525,975,111.36-8,915,672,743.72

Finding the Fourth Proportional to 15,598,532,689.90, 21,525,975,111.36 and 8,915,672,743.72

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Solution

The fourth proportional to 15,598,532,689.90, 21,525,975,111.36 and 8,915,672,743.72 is: 12,303,628,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598,532,689.90 : 21,525,975,111.36 = 8,915,672,743.72 : x
  2. Step 2: Convert to fraction form
    15,598,532,689.90/21,525,975,111.36 = 8,915,672,743.72/x
  3. Step 3: Cross multiply
    15,598,532,689.90x = 21,525,975,111.36 × 8,915,672,743.72
  4. Step 4: Simplify right side
    15,598,532,689.90x = 191,918,549,582,347,436,032
  5. Step 5: Solve for x
    x = 191,918,549,582,347,436,032/15,598,532,689.90
  6. Step 6: Final answer
    x = 12,303,628,385.93

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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.