Home / 129,085,298.74-178,132,515.34-70,346,702.70

Finding the Fourth Proportional to 129,085,298.74, 178,132,515.34 and 70,346,702.70

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Solution

The fourth proportional to 129,085,298.74, 178,132,515.34 and 70,346,702.70 is: 97,075,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,085,298.74 : 178,132,515.34 = 70,346,702.70 : x
  2. Step 2: Convert to fraction form
    129,085,298.74/178,132,515.34 = 70,346,702.70/x
  3. Step 3: Cross multiply
    129,085,298.74x = 178,132,515.34 × 70,346,702.70
  4. Step 4: Simplify right side
    129,085,298.74x = 12,531,035,097,826,170
  5. Step 5: Solve for x
    x = 12,531,035,097,826,170/129,085,298.74
  6. Step 6: Final answer
    x = 97,075,617.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.