Home / 1,021,620,569.92-1,409,836,332.86-551,721,845.48

Finding the Fourth Proportional to 1,021,620,569.92, 1,409,836,332.86 and 551,721,845.48

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Solution

The fourth proportional to 1,021,620,569.92, 1,409,836,332.86 and 551,721,845.48 is: 761,376,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,569.92 : 1,409,836,332.86 = 551,721,845.48 : x
  2. Step 2: Convert to fraction form
    1,021,620,569.92/1,409,836,332.86 = 551,721,845.48/x
  3. Step 3: Cross multiply
    1,021,620,569.92x = 1,409,836,332.86 × 551,721,845.48
  4. Step 4: Simplify right side
    1,021,620,569.92x = 777,837,503,390,274,688
  5. Step 5: Solve for x
    x = 777,837,503,390,274,688/1,021,620,569.92
  6. Step 6: Final answer
    x = 761,376,117.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.