Home / 781,521,602.40-1,172,282,403.60-706,274,805.60

Finding the Fourth Proportional to 781,521,602.40, 1,172,282,403.60 and 706,274,805.60

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Solution

The fourth proportional to 781,521,602.40, 1,172,282,403.60 and 706,274,805.60 is: 1,059,412,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,521,602.40 : 1,172,282,403.60 = 706,274,805.60 : x
  2. Step 2: Convert to fraction form
    781,521,602.40/1,172,282,403.60 = 706,274,805.60/x
  3. Step 3: Cross multiply
    781,521,602.40x = 1,172,282,403.60 × 706,274,805.60
  4. Step 4: Simplify right side
    781,521,602.40x = 827,953,526,710,890,752
  5. Step 5: Solve for x
    x = 827,953,526,710,890,752/781,521,602.40
  6. Step 6: Final answer
    x = 1,059,412,208.40

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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.