Home / 72,312,521.91-99,797,434.62-40,956,148.92

Finding the Fourth Proportional to 72,312,521.91, 99,797,434.62 and 40,956,148.92

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Solution

The fourth proportional to 72,312,521.91, 99,797,434.62 and 40,956,148.92 is: 56,522,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,312,521.91 : 99,797,434.62 = 40,956,148.92 : x
  2. Step 2: Convert to fraction form
    72,312,521.91/99,797,434.62 = 40,956,148.92/x
  3. Step 3: Cross multiply
    72,312,521.91x = 99,797,434.62 × 40,956,148.92
  4. Step 4: Simplify right side
    72,312,521.91x = 4,087,318,594,130,684
  5. Step 5: Solve for x
    x = 4,087,318,594,130,684/72,312,521.91
  6. Step 6: Final answer
    x = 56,522,971.21

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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.