Home / 290,570,515,939.84-400,997,205,883.20-168,625,808,988.16

Finding the Fourth Proportional to 290,570,515,939.84, 400,997,205,883.20 and 168,625,808,988.16

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Solution

The fourth proportional to 290,570,515,939.84, 400,997,205,883.20 and 168,625,808,988.16 is: 232,709,358,089.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,570,515,939.84 : 400,997,205,883.20 = 168,625,808,988.16 : x
  2. Step 2: Convert to fraction form
    290,570,515,939.84/400,997,205,883.20 = 168,625,808,988.16/x
  3. Step 3: Cross multiply
    290,570,515,939.84x = 400,997,205,883.20 × 168,625,808,988.16
  4. Step 4: Simplify right side
    290,570,515,939.84x = 67,618,478,244,046,359,756,800
  5. Step 5: Solve for x
    x = 67,618,478,244,046,359,756,800/290,570,515,939.84
  6. Step 6: Final answer
    x = 232,709,358,089.33

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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.