Home / 212,868,001.20-319,302,001.80-59,513,811.60

Finding the Fourth Proportional to 212,868,001.20, 319,302,001.80 and 59,513,811.60

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Solution

The fourth proportional to 212,868,001.20, 319,302,001.80 and 59,513,811.60 is: 89,270,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868,001.20 : 319,302,001.80 = 59,513,811.60 : x
  2. Step 2: Convert to fraction form
    212,868,001.20/319,302,001.80 = 59,513,811.60/x
  3. Step 3: Cross multiply
    212,868,001.20x = 319,302,001.80 × 59,513,811.60
  4. Step 4: Simplify right side
    212,868,001.20x = 19,002,879,178,628,064
  5. Step 5: Solve for x
    x = 19,002,879,178,628,064/212,868,001.20
  6. Step 6: Final answer
    x = 89,270,717.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.