Home / 352,207,031.60-528,310,547.40-221,259,969.20

Finding the Fourth Proportional to 352,207,031.60, 528,310,547.40 and 221,259,969.20

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Solution

The fourth proportional to 352,207,031.60, 528,310,547.40 and 221,259,969.20 is: 331,889,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,207,031.60 : 528,310,547.40 = 221,259,969.20 : x
  2. Step 2: Convert to fraction form
    352,207,031.60/528,310,547.40 = 221,259,969.20/x
  3. Step 3: Cross multiply
    352,207,031.60x = 528,310,547.40 × 221,259,969.20
  4. Step 4: Simplify right side
    352,207,031.60x = 116,893,975,445,759,136
  5. Step 5: Solve for x
    x = 116,893,975,445,759,136/352,207,031.60
  6. Step 6: Final answer
    x = 331,889,953.80

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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.