Home / 699,159,661,655.02-964,830,064,903.94-390,515,524,927.14

Finding the Fourth Proportional to 699,159,661,655.02, 964,830,064,903.94 and 390,515,524,927.14

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Solution

The fourth proportional to 699,159,661,655.02, 964,830,064,903.94 and 390,515,524,927.14 is: 538,905,689,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,159,661,655.02 : 964,830,064,903.94 = 390,515,524,927.14 : x
  2. Step 2: Convert to fraction form
    699,159,661,655.02/964,830,064,903.94 = 390,515,524,927.14/x
  3. Step 3: Cross multiply
    699,159,661,655.02x = 964,830,064,903.94 × 390,515,524,927.14
  4. Step 4: Simplify right side
    699,159,661,655.02x = 376,781,119,261,448,695,971,840
  5. Step 5: Solve for x
    x = 376,781,119,261,448,695,971,840/699,159,661,655.02
  6. Step 6: Final answer
    x = 538,905,689,109.05

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Double scale
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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.