Home / 71,539,123,235.02-98,721,115,772.86-38,985,645,611.94

Finding the Fourth Proportional to 71,539,123,235.02, 98,721,115,772.86 and 38,985,645,611.94

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Solution

The fourth proportional to 71,539,123,235.02, 98,721,115,772.86 and 38,985,645,611.94 is: 53,798,624,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,539,123,235.02 : 98,721,115,772.86 = 38,985,645,611.94 : x
  2. Step 2: Convert to fraction form
    71,539,123,235.02/98,721,115,772.86 = 38,985,645,611.94/x
  3. Step 3: Cross multiply
    71,539,123,235.02x = 98,721,115,772.86 × 38,985,645,611.94
  4. Step 4: Simplify right side
    71,539,123,235.02x = 3,848,706,433,936,020,471,808
  5. Step 5: Solve for x
    x = 3,848,706,433,936,020,471,808/71,539,123,235.02
  6. Step 6: Final answer
    x = 53,798,624,583.25

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Double scale
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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.