Home / 103,917,587,891.40-143,406,265,432.86-56,394,007,907.40

Finding the Fourth Proportional to 103,917,587,891.40, 143,406,265,432.86 and 56,394,007,907.40

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Solution

The fourth proportional to 103,917,587,891.40, 143,406,265,432.86 and 56,394,007,907.40 is: 77,823,727,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,917,587,891.40 : 143,406,265,432.86 = 56,394,007,907.40 : x
  2. Step 2: Convert to fraction form
    103,917,587,891.40/143,406,265,432.86 = 56,394,007,907.40/x
  3. Step 3: Cross multiply
    103,917,587,891.40x = 143,406,265,432.86 × 56,394,007,907.40
  4. Step 4: Simplify right side
    103,917,587,891.40x = 8,087,254,066,791,409,778,688
  5. Step 5: Solve for x
    x = 8,087,254,066,791,409,778,688/103,917,587,891.40
  6. Step 6: Final answer
    x = 77,823,727,733.59

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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.