Home / 523,950,091.11-723,038,457.78-288,995,707.71

Finding the Fourth Proportional to 523,950,091.11, 723,038,457.78 and 288,995,707.71

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Solution

The fourth proportional to 523,950,091.11, 723,038,457.78 and 288,995,707.71 is: 398,807,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,950,091.11 : 723,038,457.78 = 288,995,707.71 : x
  2. Step 2: Convert to fraction form
    523,950,091.11/723,038,457.78 = 288,995,707.71/x
  3. Step 3: Cross multiply
    523,950,091.11x = 723,038,457.78 × 288,995,707.71
  4. Step 4: Simplify right side
    523,950,091.11x = 208,955,010,807,678,016
  5. Step 5: Solve for x
    x = 208,955,010,807,678,016/523,950,091.11
  6. Step 6: Final answer
    x = 398,807,089.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.