Home / 285,368,887.16-393,811,079.98-154,988,695.16

Finding the Fourth Proportional to 285,368,887.16, 393,811,079.98 and 154,988,695.16

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Solution

The fourth proportional to 285,368,887.16, 393,811,079.98 and 154,988,695.16 is: 213,885,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,368,887.16 : 393,811,079.98 = 154,988,695.16 : x
  2. Step 2: Convert to fraction form
    285,368,887.16/393,811,079.98 = 154,988,695.16/x
  3. Step 3: Cross multiply
    285,368,887.16x = 393,811,079.98 × 154,988,695.16
  4. Step 4: Simplify right side
    285,368,887.16x = 61,036,265,425,650,600
  5. Step 5: Solve for x
    x = 61,036,265,425,650,600/285,368,887.16
  6. Step 6: Final answer
    x = 213,885,494.08

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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.