Home / 618,590,472.21-927,272,807.37-290,478,632.76

Finding the Fourth Proportional to 618,590,472.21, 927,272,807.37 and 290,478,632.76

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Solution

The fourth proportional to 618,590,472.21, 927,272,807.37 and 290,478,632.76 is: 435,430,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,590,472.21 : 927,272,807.37 = 290,478,632.76 : x
  2. Step 2: Convert to fraction form
    618,590,472.21/927,272,807.37 = 290,478,632.76/x
  3. Step 3: Cross multiply
    618,590,472.21x = 927,272,807.37 × 290,478,632.76
  4. Step 4: Simplify right side
    618,590,472.21x = 269,352,937,280,364,448
  5. Step 5: Solve for x
    x = 269,352,937,280,364,448/618,590,472.21
  6. Step 6: Final answer
    x = 435,430,142.20

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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.