Home / 1,346,455,137.56-1,857,966,477.18-781,829,649.32

Finding the Fourth Proportional to 1,346,455,137.56, 1,857,966,477.18 and 781,829,649.32

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Solution

The fourth proportional to 1,346,455,137.56, 1,857,966,477.18 and 781,829,649.32 is: 1,078,842,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,455,137.56 : 1,857,966,477.18 = 781,829,649.32 : x
  2. Step 2: Convert to fraction form
    1,346,455,137.56/1,857,966,477.18 = 781,829,649.32/x
  3. Step 3: Cross multiply
    1,346,455,137.56x = 1,857,966,477.18 × 781,829,649.32
  4. Step 4: Simplify right side
    1,346,455,137.56x = 1,452,613,279,301,955,328
  5. Step 5: Solve for x
    x = 1,452,613,279,301,955,328/1,346,455,137.56
  6. Step 6: Final answer
    x = 1,078,842,687.57

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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.