Home / 208,476,868.01-287,611,851.53-120,308,312.93

Finding the Fourth Proportional to 208,476,868.01, 287,611,851.53 and 120,308,312.93

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Solution

The fourth proportional to 208,476,868.01, 287,611,851.53 and 120,308,312.93 is: 165,975,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,476,868.01 : 287,611,851.53 = 120,308,312.93 : x
  2. Step 2: Convert to fraction form
    208,476,868.01/287,611,851.53 = 120,308,312.93/x
  3. Step 3: Cross multiply
    208,476,868.01x = 287,611,851.53 × 120,308,312.93
  4. Step 4: Simplify right side
    208,476,868.01x = 34,602,096,635,110,652
  5. Step 5: Solve for x
    x = 34,602,096,635,110,652/208,476,868.01
  6. Step 6: Final answer
    x = 165,975,712.16

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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.