Home / 489,917,038.40-734,119,730.40-424,915,899.20

Finding the Fourth Proportional to 489,917,038.40, 734,119,730.40 and 424,915,899.20

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Solution

The fourth proportional to 489,917,038.40, 734,119,730.40 and 424,915,899.20 is: 636,718,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,917,038.40 : 734,119,730.40 = 424,915,899.20 : x
  2. Step 2: Convert to fraction form
    489,917,038.40/734,119,730.40 = 424,915,899.20/x
  3. Step 3: Cross multiply
    489,917,038.40x = 734,119,730.40 × 424,915,899.20
  4. Step 4: Simplify right side
    489,917,038.40x = 311,939,145,363,377,536
  5. Step 5: Solve for x
    x = 311,939,145,363,377,536/489,917,038.40
  6. Step 6: Final answer
    x = 636,718,303.13

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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.