Home / 74,857,547.40-112,286,321.10-21,004,859.40

Finding the Fourth Proportional to 74,857,547.40, 112,286,321.10 and 21,004,859.40

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Solution

The fourth proportional to 74,857,547.40, 112,286,321.10 and 21,004,859.40 is: 31,507,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,857,547.40 : 112,286,321.10 = 21,004,859.40 : x
  2. Step 2: Convert to fraction form
    74,857,547.40/112,286,321.10 = 21,004,859.40/x
  3. Step 3: Cross multiply
    74,857,547.40x = 112,286,321.10 × 21,004,859.40
  4. Step 4: Simplify right side
    74,857,547.40x = 2,358,558,387,248,753
  5. Step 5: Solve for x
    x = 2,358,558,387,248,753/74,857,547.40
  6. Step 6: Final answer
    x = 31,507,289.10

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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.