Home / 401,333,539,341.39-553,852,045,123.62-218,442,486,806.04

Finding the Fourth Proportional to 401,333,539,341.39, 553,852,045,123.62 and 218,442,486,806.04

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Solution

The fourth proportional to 401,333,539,341.39, 553,852,045,123.62 and 218,442,486,806.04 is: 301,457,033,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,333,539,341.39 : 553,852,045,123.62 = 218,442,486,806.04 : x
  2. Step 2: Convert to fraction form
    401,333,539,341.39/553,852,045,123.62 = 218,442,486,806.04/x
  3. Step 3: Cross multiply
    401,333,539,341.39x = 553,852,045,123.62 × 218,442,486,806.04
  4. Step 4: Simplify right side
    401,333,539,341.39x = 120,984,818,059,414,637,379,584
  5. Step 5: Solve for x
    x = 120,984,818,059,414,637,379,584/401,333,539,341.39
  6. Step 6: Final answer
    x = 301,457,033,115.04

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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.