Home / 287,064,209.60-430,596,314.40-253,051,985.60

Finding the Fourth Proportional to 287,064,209.60, 430,596,314.40 and 253,051,985.60

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Solution

The fourth proportional to 287,064,209.60, 430,596,314.40 and 253,051,985.60 is: 379,577,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,064,209.60 : 430,596,314.40 = 253,051,985.60 : x
  2. Step 2: Convert to fraction form
    287,064,209.60/430,596,314.40 = 253,051,985.60/x
  3. Step 3: Cross multiply
    287,064,209.60x = 430,596,314.40 × 253,051,985.60
  4. Step 4: Simplify right side
    287,064,209.60x = 108,963,252,350,961,872
  5. Step 5: Solve for x
    x = 108,963,252,350,961,872/287,064,209.60
  6. Step 6: Final answer
    x = 379,577,978.40

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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.