Home / 78,760,638,583.48-118,141,260,796.16-19,069,201,406.64

Finding the Fourth Proportional to 78,760,638,583.48, 118,141,260,796.16 and 19,069,201,406.64

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Solution

The fourth proportional to 78,760,638,583.48, 118,141,260,796.16 and 19,069,201,406.64 is: 28,603,875,451.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,760,638,583.48 : 118,141,260,796.16 = 19,069,201,406.64 : x
  2. Step 2: Convert to fraction form
    78,760,638,583.48/118,141,260,796.16 = 19,069,201,406.64/x
  3. Step 3: Cross multiply
    78,760,638,583.48x = 118,141,260,796.16 × 19,069,201,406.64
  4. Step 4: Simplify right side
    78,760,638,583.48x = 2,252,859,496,556,357,484,544
  5. Step 5: Solve for x
    x = 2,252,859,496,556,357,484,544/78,760,638,583.48
  6. Step 6: Final answer
    x = 28,603,875,451.93

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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.