Home / 7,128,777,814.40-10,693,166,721.60-6,516,053,897.60

Finding the Fourth Proportional to 7,128,777,814.40, 10,693,166,721.60 and 6,516,053,897.60

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Solution

The fourth proportional to 7,128,777,814.40, 10,693,166,721.60 and 6,516,053,897.60 is: 9,774,080,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,777,814.40 : 10,693,166,721.60 = 6,516,053,897.60 : x
  2. Step 2: Convert to fraction form
    7,128,777,814.40/10,693,166,721.60 = 6,516,053,897.60/x
  3. Step 3: Cross multiply
    7,128,777,814.40x = 10,693,166,721.60 × 6,516,053,897.60
  4. Step 4: Simplify right side
    7,128,777,814.40x = 69,677,250,693,968,297,984
  5. Step 5: Solve for x
    x = 69,677,250,693,968,297,984/7,128,777,814.40
  6. Step 6: Final answer
    x = 9,774,080,846.40

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Double scale
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1.5x scale

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.