Home / 12,399,157,383.90-18,598,736,075.85-7,440,175,124.70

Finding the Fourth Proportional to 12,399,157,383.90, 18,598,736,075.85 and 7,440,175,124.70

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Solution

The fourth proportional to 12,399,157,383.90, 18,598,736,075.85 and 7,440,175,124.70 is: 11,160,262,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399,157,383.90 : 18,598,736,075.85 = 7,440,175,124.70 : x
  2. Step 2: Convert to fraction form
    12,399,157,383.90/18,598,736,075.85 = 7,440,175,124.70/x
  3. Step 3: Cross multiply
    12,399,157,383.90x = 18,598,736,075.85 × 7,440,175,124.70
  4. Step 4: Simplify right side
    12,399,157,383.90x = 138,377,853,502,399,643,648
  5. Step 5: Solve for x
    x = 138,377,853,502,399,643,648/12,399,157,383.90
  6. Step 6: Final answer
    x = 11,160,262,687.05

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1.5x scale

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.