Home / 1,913,264,645.64-2,869,897,001.94-459,242,069.64

Finding the Fourth Proportional to 1,913,264,645.64, 2,869,897,001.94 and 459,242,069.64

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Solution

The fourth proportional to 1,913,264,645.64, 2,869,897,001.94 and 459,242,069.64 is: 688,863,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,264,645.64 : 2,869,897,001.94 = 459,242,069.64 : x
  2. Step 2: Convert to fraction form
    1,913,264,645.64/2,869,897,001.94 = 459,242,069.64/x
  3. Step 3: Cross multiply
    1,913,264,645.64x = 2,869,897,001.94 × 459,242,069.64
  4. Step 4: Simplify right side
    1,913,264,645.64x = 1,317,977,438,824,556,800
  5. Step 5: Solve for x
    x = 1,317,977,438,824,556,800/1,913,264,645.64
  6. Step 6: Final answer
    x = 688,863,112.50

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Double scale
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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.