Home / 309,526,033.66-427,149,316.76-168,398,056.35

Finding the Fourth Proportional to 309,526,033.66, 427,149,316.76 and 168,398,056.35

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Solution

The fourth proportional to 309,526,033.66, 427,149,316.76 and 168,398,056.35 is: 232,391,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,526,033.66 : 427,149,316.76 = 168,398,056.35 : x
  2. Step 2: Convert to fraction form
    309,526,033.66/427,149,316.76 = 168,398,056.35/x
  3. Step 3: Cross multiply
    309,526,033.66x = 427,149,316.76 × 168,398,056.35
  4. Step 4: Simplify right side
    309,526,033.66x = 71,931,114,712,772,488
  5. Step 5: Solve for x
    x = 71,931,114,712,772,488/309,526,033.66
  6. Step 6: Final answer
    x = 232,391,162.26

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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.