Home / 285,311,477,691.80-393,730,092,496.14-156,855,111,831.81

Finding the Fourth Proportional to 285,311,477,691.80, 393,730,092,496.14 and 156,855,111,831.81

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Solution

The fourth proportional to 285,311,477,691.80, 393,730,092,496.14 and 156,855,111,831.81 is: 216,460,193,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311,477,691.80 : 393,730,092,496.14 = 156,855,111,831.81 : x
  2. Step 2: Convert to fraction form
    285,311,477,691.80/393,730,092,496.14 = 156,855,111,831.81/x
  3. Step 3: Cross multiply
    285,311,477,691.80x = 393,730,092,496.14 × 156,855,111,831.81
  4. Step 4: Simplify right side
    285,311,477,691.80x = 61,758,577,690,030,936,948,736
  5. Step 5: Solve for x
    x = 61,758,577,690,030,936,948,736/285,311,477,691.80
  6. Step 6: Final answer
    x = 216,460,193,573.93

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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.