Home / 915,830,545.63-1,263,503,776.53-539,256,988.88

Finding the Fourth Proportional to 915,830,545.63, 1,263,503,776.53 and 539,256,988.88

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Solution

The fourth proportional to 915,830,545.63, 1,263,503,776.53 and 539,256,988.88 is: 743,973,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,830,545.63 : 1,263,503,776.53 = 539,256,988.88 : x
  2. Step 2: Convert to fraction form
    915,830,545.63/1,263,503,776.53 = 539,256,988.88/x
  3. Step 3: Cross multiply
    915,830,545.63x = 1,263,503,776.53 × 539,256,988.88
  4. Step 4: Simplify right side
    915,830,545.63x = 681,353,241,970,076,160
  5. Step 5: Solve for x
    x = 681,353,241,970,076,160/915,830,545.63
  6. Step 6: Final answer
    x = 743,973,047.44

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1.5x scale

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.