Home / 81,708,506.04-112,757,710.80-45,039,689.40

Finding the Fourth Proportional to 81,708,506.04, 112,757,710.80 and 45,039,689.40

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Solution

The fourth proportional to 81,708,506.04, 112,757,710.80 and 45,039,689.40 is: 62,154,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,708,506.04 : 112,757,710.80 = 45,039,689.40 : x
  2. Step 2: Convert to fraction form
    81,708,506.04/112,757,710.80 = 45,039,689.40/x
  3. Step 3: Cross multiply
    81,708,506.04x = 112,757,710.80 × 45,039,689.40
  4. Step 4: Simplify right side
    81,708,506.04x = 5,078,572,271,887,025
  5. Step 5: Solve for x
    x = 5,078,572,271,887,025/81,708,506.04
  6. Step 6: Final answer
    x = 62,154,756.19

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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.