Home / 834,623,999.80-1,251,935,999.70-528,262,041.40

Finding the Fourth Proportional to 834,623,999.80, 1,251,935,999.70 and 528,262,041.40

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Solution

The fourth proportional to 834,623,999.80, 1,251,935,999.70 and 528,262,041.40 is: 792,393,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,623,999.80 : 1,251,935,999.70 = 528,262,041.40 : x
  2. Step 2: Convert to fraction form
    834,623,999.80/1,251,935,999.70 = 528,262,041.40/x
  3. Step 3: Cross multiply
    834,623,999.80x = 1,251,935,999.70 × 528,262,041.40
  4. Step 4: Simplify right side
    834,623,999.80x = 661,350,266,903,671,808
  5. Step 5: Solve for x
    x = 661,350,266,903,671,808/834,623,999.80
  6. Step 6: Final answer
    x = 792,393,062.10

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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.