Home / 834,971,901.48-1,152,461,904.68-477,946,640.72

Finding the Fourth Proportional to 834,971,901.48, 1,152,461,904.68 and 477,946,640.72

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Solution

The fourth proportional to 834,971,901.48, 1,152,461,904.68 and 477,946,640.72 is: 659,681,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,971,901.48 : 1,152,461,904.68 = 477,946,640.72 : x
  2. Step 2: Convert to fraction form
    834,971,901.48/1,152,461,904.68 = 477,946,640.72/x
  3. Step 3: Cross multiply
    834,971,901.48x = 1,152,461,904.68 × 477,946,640.72
  4. Step 4: Simplify right side
    834,971,901.48x = 550,815,295,899,578,880
  5. Step 5: Solve for x
    x = 550,815,295,899,578,880/834,971,901.48
  6. Step 6: Final answer
    x = 659,681,235.89

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Double scale
Find fourth proportional to 834,971,902.48, 1,152,461,906.06 and 477,946,641.72
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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.