Home / 1,570,210,801.38-2,166,890,918.08-865,362,790.76

Finding the Fourth Proportional to 1,570,210,801.38, 2,166,890,918.08 and 865,362,790.76

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Solution

The fourth proportional to 1,570,210,801.38, 2,166,890,918.08 and 865,362,790.76 is: 1,194,200,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,210,801.38 : 2,166,890,918.08 = 865,362,790.76 : x
  2. Step 2: Convert to fraction form
    1,570,210,801.38/2,166,890,918.08 = 865,362,790.76/x
  3. Step 3: Cross multiply
    1,570,210,801.38x = 2,166,890,918.08 × 865,362,790.76
  4. Step 4: Simplify right side
    1,570,210,801.38x = 1,875,146,772,143,140,096
  5. Step 5: Solve for x
    x = 1,875,146,772,143,140,096/1,570,210,801.38
  6. Step 6: Final answer
    x = 1,194,200,657.96

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Double scale
Find fourth proportional to 1,570,210,802.38, 2,166,890,919.46 and 865,362,791.76
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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.