Home / 717,709,772.40-1,077,068,543.40-309,059,199.60

Finding the Fourth Proportional to 717,709,772.40, 1,077,068,543.40 and 309,059,199.60

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Solution

The fourth proportional to 717,709,772.40, 1,077,068,543.40 and 309,059,199.60 is: 463,805,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,709,772.40 : 1,077,068,543.40 = 309,059,199.60 : x
  2. Step 2: Convert to fraction form
    717,709,772.40/1,077,068,543.40 = 309,059,199.60/x
  3. Step 3: Cross multiply
    717,709,772.40x = 1,077,068,543.40 × 309,059,199.60
  4. Step 4: Simplify right side
    717,709,772.40x = 332,877,941,937,541,888
  5. Step 5: Solve for x
    x = 332,877,941,937,541,888/717,709,772.40
  6. Step 6: Final answer
    x = 463,805,781.58

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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.