Home / 1,345,702,536.28-2,018,540,334.66-425,579,031.64

Finding the Fourth Proportional to 1,345,702,536.28, 2,018,540,334.66 and 425,579,031.64

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Solution

The fourth proportional to 1,345,702,536.28, 2,018,540,334.66 and 425,579,031.64 is: 638,364,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,702,536.28 : 2,018,540,334.66 = 425,579,031.64 : x
  2. Step 2: Convert to fraction form
    1,345,702,536.28/2,018,540,334.66 = 425,579,031.64/x
  3. Step 3: Cross multiply
    1,345,702,536.28x = 2,018,540,334.66 × 425,579,031.64
  4. Step 4: Simplify right side
    1,345,702,536.28x = 859,048,440,950,884,352
  5. Step 5: Solve for x
    x = 859,048,440,950,884,352/1,345,702,536.28
  6. Step 6: Final answer
    x = 638,364,287.64

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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.