Home / 78,800,913,357.70-118,176,923,491.85-28,429,798,979.69

Finding the Fourth Proportional to 78,800,913,357.70, 118,176,923,491.85 and 28,429,798,979.69

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Solution

The fourth proportional to 78,800,913,357.70, 118,176,923,491.85 and 28,429,798,979.69 is: 42,635,878,643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,800,913,357.70 : 118,176,923,491.85 = 28,429,798,979.69 : x
  2. Step 2: Convert to fraction form
    78,800,913,357.70/118,176,923,491.85 = 28,429,798,979.69/x
  3. Step 3: Cross multiply
    78,800,913,357.70x = 118,176,923,491.85 × 28,429,798,979.69
  4. Step 4: Simplify right side
    78,800,913,357.70x = 3,359,746,178,911,737,217,024
  5. Step 5: Solve for x
    x = 3,359,746,178,911,737,217,024/78,800,913,357.70
  6. Step 6: Final answer
    x = 42,635,878,643.45

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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.