Home / 747,345,611.80-1,121,018,417.70-436,133,762.20

Finding the Fourth Proportional to 747,345,611.80, 1,121,018,417.70 and 436,133,762.20

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Solution

The fourth proportional to 747,345,611.80, 1,121,018,417.70 and 436,133,762.20 is: 654,200,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,345,611.80 : 1,121,018,417.70 = 436,133,762.20 : x
  2. Step 2: Convert to fraction form
    747,345,611.80/1,121,018,417.70 = 436,133,762.20/x
  3. Step 3: Cross multiply
    747,345,611.80x = 1,121,018,417.70 × 436,133,762.20
  4. Step 4: Simplify right side
    747,345,611.80x = 488,913,980,006,992,064
  5. Step 5: Solve for x
    x = 488,913,980,006,992,064/747,345,611.80
  6. Step 6: Final answer
    x = 654,200,643.30

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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.