Home / 31,493,574,288.45-47,240,406,898.65-12,861,070,145.64

Finding the Fourth Proportional to 31,493,574,288.45, 47,240,406,898.65 and 12,861,070,145.64

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Solution

The fourth proportional to 31,493,574,288.45, 47,240,406,898.65 and 12,861,070,145.64 is: 19,291,623,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493,574,288.45 : 47,240,406,898.65 = 12,861,070,145.64 : x
  2. Step 2: Convert to fraction form
    31,493,574,288.45/47,240,406,898.65 = 12,861,070,145.64/x
  3. Step 3: Cross multiply
    31,493,574,288.45x = 47,240,406,898.65 × 12,861,070,145.64
  4. Step 4: Simplify right side
    31,493,574,288.45x = 607,562,186,832,113,434,624
  5. Step 5: Solve for x
    x = 607,562,186,832,113,434,624/31,493,574,288.45
  6. Step 6: Final answer
    x = 19,291,623,785.46

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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.