Home / 1,243,581,921-1,866,018,468.78-507,192,077.16

Finding the Fourth Proportional to 1,243,581,921, 1,866,018,468.78 and 507,192,077.16

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Solution

The fourth proportional to 1,243,581,921, 1,866,018,468.78 and 507,192,077.16 is: 761,051,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,581,921 : 1,866,018,468.78 = 507,192,077.16 : x
  2. Step 2: Convert to fraction form
    1,243,581,921/1,866,018,468.78 = 507,192,077.16/x
  3. Step 3: Cross multiply
    1,243,581,921x = 1,866,018,468.78 × 507,192,077.16
  4. Step 4: Simplify right side
    1,243,581,921x = 946,429,783,199,450,880
  5. Step 5: Solve for x
    x = 946,429,783,199,450,880/1,243,581,921
  6. Step 6: Final answer
    x = 761,051,417.05

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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.