Home / 78,841,778,431.11-118,262,669,012.86-19,150,038,473.08

Finding the Fourth Proportional to 78,841,778,431.11, 118,262,669,012.86 and 19,150,038,473.08

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Solution

The fourth proportional to 78,841,778,431.11, 118,262,669,012.86 and 19,150,038,473.08 is: 28,725,058,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,841,778,431.11 : 118,262,669,012.86 = 19,150,038,473.08 : x
  2. Step 2: Convert to fraction form
    78,841,778,431.11/118,262,669,012.86 = 19,150,038,473.08/x
  3. Step 3: Cross multiply
    78,841,778,431.11x = 118,262,669,012.86 × 19,150,038,473.08
  4. Step 4: Simplify right side
    78,841,778,431.11x = 2,264,734,661,525,395,210,240
  5. Step 5: Solve for x
    x = 2,264,734,661,525,395,210,240/78,841,778,431.11
  6. Step 6: Final answer
    x = 28,725,058,041.46

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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.