Home / 28,741,509,321.14-39,648,426,323.37-18,186,835,969.46

Finding the Fourth Proportional to 28,741,509,321.14, 39,648,426,323.37 and 18,186,835,969.46

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Solution

The fourth proportional to 28,741,509,321.14, 39,648,426,323.37 and 18,186,835,969.46 is: 25,088,432,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,741,509,321.14 : 39,648,426,323.37 = 18,186,835,969.46 : x
  2. Step 2: Convert to fraction form
    28,741,509,321.14/39,648,426,323.37 = 18,186,835,969.46/x
  3. Step 3: Cross multiply
    28,741,509,321.14x = 39,648,426,323.37 × 18,186,835,969.46
  4. Step 4: Simplify right side
    28,741,509,321.14x = 721,079,425,990,350,209,024
  5. Step 5: Solve for x
    x = 721,079,425,990,350,209,024/28,741,509,321.14
  6. Step 6: Final answer
    x = 25,088,432,828.40

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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.