Home / 1,201,127,519.82-1,657,624,279.64-672,486,880.98

Finding the Fourth Proportional to 1,201,127,519.82, 1,657,624,279.64 and 672,486,880.98

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Solution

The fourth proportional to 1,201,127,519.82, 1,657,624,279.64 and 672,486,880.98 is: 928,070,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,127,519.82 : 1,657,624,279.64 = 672,486,880.98 : x
  2. Step 2: Convert to fraction form
    1,201,127,519.82/1,657,624,279.64 = 672,486,880.98/x
  3. Step 3: Cross multiply
    1,201,127,519.82x = 1,657,624,279.64 × 672,486,880.98
  4. Step 4: Simplify right side
    1,201,127,519.82x = 1,114,730,581,648,460,544
  5. Step 5: Solve for x
    x = 1,114,730,581,648,460,544/1,201,127,519.82
  6. Step 6: Final answer
    x = 928,070,136.81

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Double scale
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1.5x scale

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.