Home / 13,109,498,437.21-19,655,792,981.87-5,142,471,675.89

Finding the Fourth Proportional to 13,109,498,437.21, 19,655,792,981.87 and 5,142,471,675.89

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Solution

The fourth proportional to 13,109,498,437.21, 19,655,792,981.87 and 5,142,471,675.89 is: 7,710,390,993.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,498,437.21 : 19,655,792,981.87 = 5,142,471,675.89 : x
  2. Step 2: Convert to fraction form
    13,109,498,437.21/19,655,792,981.87 = 5,142,471,675.89/x
  3. Step 3: Cross multiply
    13,109,498,437.21x = 19,655,792,981.87 × 5,142,471,675.89
  4. Step 4: Simplify right side
    13,109,498,437.21x = 101,079,358,676,299,939,840
  5. Step 5: Solve for x
    x = 101,079,358,676,299,939,840/13,109,498,437.21
  6. Step 6: Final answer
    x = 7,710,390,993.25

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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.