Home / 1,312,711,811.28-1,811,149,017.48-755,780,538.96

Finding the Fourth Proportional to 1,312,711,811.28, 1,811,149,017.48 and 755,780,538.96

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Solution

The fourth proportional to 1,312,711,811.28, 1,811,149,017.48 and 755,780,538.96 is: 1,042,750,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,711,811.28 : 1,811,149,017.48 = 755,780,538.96 : x
  2. Step 2: Convert to fraction form
    1,312,711,811.28/1,811,149,017.48 = 755,780,538.96/x
  3. Step 3: Cross multiply
    1,312,711,811.28x = 1,811,149,017.48 × 755,780,538.96
  4. Step 4: Simplify right side
    1,312,711,811.28x = 1,368,831,180,567,908,864
  5. Step 5: Solve for x
    x = 1,368,831,180,567,908,864/1,312,711,811.28
  6. Step 6: Final answer
    x = 1,042,750,715.58

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1.5x scale

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.