Home / 78,384,672,031.45-117,577,008,047.18-70,303,367,609.05

Finding the Fourth Proportional to 78,384,672,031.45, 117,577,008,047.18 and 70,303,367,609.05

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Solution

The fourth proportional to 78,384,672,031.45, 117,577,008,047.18 and 70,303,367,609.05 is: 105,455,051,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,672,031.45 : 117,577,008,047.18 = 70,303,367,609.05 : x
  2. Step 2: Convert to fraction form
    78,384,672,031.45/117,577,008,047.18 = 70,303,367,609.05/x
  3. Step 3: Cross multiply
    78,384,672,031.45x = 117,577,008,047.18 × 70,303,367,609.05
  4. Step 4: Simplify right side
    78,384,672,031.45x = 8,266,059,619,113,125,281,792
  5. Step 5: Solve for x
    x = 8,266,059,619,113,125,281,792/78,384,672,031.45
  6. Step 6: Final answer
    x = 105,455,051,413.58

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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.