Home / 1,223,424,013.40-1,835,136,020.10-405,662,528.60

Finding the Fourth Proportional to 1,223,424,013.40, 1,835,136,020.10 and 405,662,528.60

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Solution

The fourth proportional to 1,223,424,013.40, 1,835,136,020.10 and 405,662,528.60 is: 608,493,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,424,013.40 : 1,835,136,020.10 = 405,662,528.60 : x
  2. Step 2: Convert to fraction form
    1,223,424,013.40/1,835,136,020.10 = 405,662,528.60/x
  3. Step 3: Cross multiply
    1,223,424,013.40x = 1,835,136,020.10 × 405,662,528.60
  4. Step 4: Simplify right side
    1,223,424,013.40x = 744,445,918,238,706,432
  5. Step 5: Solve for x
    x = 744,445,918,238,706,432/1,223,424,013.40
  6. Step 6: Final answer
    x = 608,493,792.90

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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.