Home / 1,280,950,648.32-1,921,688,036.27-440,484,237.30

Finding the Fourth Proportional to 1,280,950,648.32, 1,921,688,036.27 and 440,484,237.30

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Solution

The fourth proportional to 1,280,950,648.32, 1,921,688,036.27 and 440,484,237.30 is: 660,816,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,950,648.32 : 1,921,688,036.27 = 440,484,237.30 : x
  2. Step 2: Convert to fraction form
    1,280,950,648.32/1,921,688,036.27 = 440,484,237.30/x
  3. Step 3: Cross multiply
    1,280,950,648.32x = 1,921,688,036.27 × 440,484,237.30
  4. Step 4: Simplify right side
    1,280,950,648.32x = 846,473,288,975,709,184
  5. Step 5: Solve for x
    x = 846,473,288,975,709,184/1,280,950,648.32
  6. Step 6: Final answer
    x = 660,816,472.58

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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.