Home / 212,869,531.40-319,210,985.10-97,815,835.40

Finding the Fourth Proportional to 212,869,531.40, 319,210,985.10 and 97,815,835.40

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Solution

The fourth proportional to 212,869,531.40, 319,210,985.10 and 97,815,835.40 is: 146,680,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,869,531.40 : 319,210,985.10 = 97,815,835.40 : x
  2. Step 2: Convert to fraction form
    212,869,531.40/319,210,985.10 = 97,815,835.40/x
  3. Step 3: Cross multiply
    212,869,531.40x = 319,210,985.10 × 97,815,835.40
  4. Step 4: Simplify right side
    212,869,531.40x = 31,223,889,176,413,456
  5. Step 5: Solve for x
    x = 31,223,889,176,413,456/212,869,531.40
  6. Step 6: Final answer
    x = 146,680,875.23

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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.