Home / 78,884,204.60-118,270,319.70-30,343,302.20

Finding the Fourth Proportional to 78,884,204.60, 118,270,319.70 and 30,343,302.20

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Solution

The fourth proportional to 78,884,204.60, 118,270,319.70 and 30,343,302.20 is: 45,493,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,884,204.60 : 118,270,319.70 = 30,343,302.20 : x
  2. Step 2: Convert to fraction form
    78,884,204.60/118,270,319.70 = 30,343,302.20/x
  3. Step 3: Cross multiply
    78,884,204.60x = 118,270,319.70 × 30,343,302.20
  4. Step 4: Simplify right side
    78,884,204.60x = 3,588,712,051,947,713.50
  5. Step 5: Solve for x
    x = 3,588,712,051,947,713.50/78,884,204.60
  6. Step 6: Final answer
    x = 45,493,417.47

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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.