Home / 289,038,966.33-398,872,767.54-156,879,962.43

Finding the Fourth Proportional to 289,038,966.33, 398,872,767.54 and 156,879,962.43

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Solution

The fourth proportional to 289,038,966.33, 398,872,767.54 and 156,879,962.43 is: 216,493,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,038,966.33 : 398,872,767.54 = 156,879,962.43 : x
  2. Step 2: Convert to fraction form
    289,038,966.33/398,872,767.54 = 156,879,962.43/x
  3. Step 3: Cross multiply
    289,038,966.33x = 398,872,767.54 × 156,879,962.43
  4. Step 4: Simplify right side
    289,038,966.33x = 62,575,144,786,025,328
  5. Step 5: Solve for x
    x = 62,575,144,786,025,328/289,038,966.33
  6. Step 6: Final answer
    x = 216,493,802.14

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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.