Home / 435,456,712.80-653,241,056.40-217,218,607.20

Finding the Fourth Proportional to 435,456,712.80, 653,241,056.40 and 217,218,607.20

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Solution

The fourth proportional to 435,456,712.80, 653,241,056.40 and 217,218,607.20 is: 325,855,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,456,712.80 : 653,241,056.40 = 217,218,607.20 : x
  2. Step 2: Convert to fraction form
    435,456,712.80/653,241,056.40 = 217,218,607.20/x
  3. Step 3: Cross multiply
    435,456,712.80x = 653,241,056.40 × 217,218,607.20
  4. Step 4: Simplify right side
    435,456,712.80x = 141,896,112,437,064,640
  5. Step 5: Solve for x
    x = 141,896,112,437,064,640/435,456,712.80
  6. Step 6: Final answer
    x = 325,855,838.86

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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.