Home / 287,064,501.40-430,596,752.10-171,989,810.20

Finding the Fourth Proportional to 287,064,501.40, 430,596,752.10 and 171,989,810.20

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Solution

The fourth proportional to 287,064,501.40, 430,596,752.10 and 171,989,810.20 is: 257,984,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,064,501.40 : 430,596,752.10 = 171,989,810.20 : x
  2. Step 2: Convert to fraction form
    287,064,501.40/430,596,752.10 = 171,989,810.20/x
  3. Step 3: Cross multiply
    287,064,501.40x = 430,596,752.10 × 171,989,810.20
  4. Step 4: Simplify right side
    287,064,501.40x = 74,058,253,666,415,456
  5. Step 5: Solve for x
    x = 74,058,253,666,415,456/287,064,501.40
  6. Step 6: Final answer
    x = 257,984,715.30

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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.