Home / 698,574,283.20-1,047,861,424.80-620,640,100.80

Finding the Fourth Proportional to 698,574,283.20, 1,047,861,424.80 and 620,640,100.80

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Solution

The fourth proportional to 698,574,283.20, 1,047,861,424.80 and 620,640,100.80 is: 930,960,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,574,283.20 : 1,047,861,424.80 = 620,640,100.80 : x
  2. Step 2: Convert to fraction form
    698,574,283.20/1,047,861,424.80 = 620,640,100.80/x
  3. Step 3: Cross multiply
    698,574,283.20x = 1,047,861,424.80 × 620,640,100.80
  4. Step 4: Simplify right side
    698,574,283.20x = 650,344,820,312,303,488
  5. Step 5: Solve for x
    x = 650,344,820,312,303,488/698,574,283.20
  6. Step 6: Final answer
    x = 930,960,151.20

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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.