Home / 977,812,145.28-1,466,696,911.68-459,955,545.12

Finding the Fourth Proportional to 977,812,145.28, 1,466,696,911.68 and 459,955,545.12

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Solution

The fourth proportional to 977,812,145.28, 1,466,696,911.68 and 459,955,545.12 is: 689,923,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,812,145.28 : 1,466,696,911.68 = 459,955,545.12 : x
  2. Step 2: Convert to fraction form
    977,812,145.28/1,466,696,911.68 = 459,955,545.12/x
  3. Step 3: Cross multiply
    977,812,145.28x = 1,466,696,911.68 × 459,955,545.12
  4. Step 4: Simplify right side
    977,812,145.28x = 674,615,377,537,594,880
  5. Step 5: Solve for x
    x = 674,615,377,537,594,880/977,812,145.28
  6. Step 6: Final answer
    x = 689,923,295.38

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1.5x scale

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.