Home / 287,064,200.40-430,596,300.60-171,989,509.20

Finding the Fourth Proportional to 287,064,200.40, 430,596,300.60 and 171,989,509.20

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Solution

The fourth proportional to 287,064,200.40, 430,596,300.60 and 171,989,509.20 is: 257,984,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,064,200.40 : 430,596,300.60 = 171,989,509.20 : x
  2. Step 2: Convert to fraction form
    287,064,200.40/430,596,300.60 = 171,989,509.20/x
  3. Step 3: Cross multiply
    287,064,200.40x = 430,596,300.60 × 171,989,509.20
  4. Step 4: Simplify right side
    287,064,200.40x = 74,058,046,403,529,664
  5. Step 5: Solve for x
    x = 74,058,046,403,529,664/287,064,200.40
  6. Step 6: Final answer
    x = 257,984,263.80

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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.