Home / 18,415,230,831.12-25,411,975,132.32-10,386,091,476.12

Finding the Fourth Proportional to 18,415,230,831.12, 25,411,975,132.32 and 10,386,091,476.12

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Solution

The fourth proportional to 18,415,230,831.12, 25,411,975,132.32 and 10,386,091,476.12 is: 14,332,217,756.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415,230,831.12 : 25,411,975,132.32 = 10,386,091,476.12 : x
  2. Step 2: Convert to fraction form
    18,415,230,831.12/25,411,975,132.32 = 10,386,091,476.12/x
  3. Step 3: Cross multiply
    18,415,230,831.12x = 25,411,975,132.32 × 10,386,091,476.12
  4. Step 4: Simplify right side
    18,415,230,831.12x = 263,931,098,313,162,194,944
  5. Step 5: Solve for x
    x = 263,931,098,313,162,194,944/18,415,230,831.12
  6. Step 6: Final answer
    x = 14,332,217,756.79

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Double scale
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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.