Home / 877,421,123.36-1,316,131,605.14-386,134,392.86

Finding the Fourth Proportional to 877,421,123.36, 1,316,131,605.14 and 386,134,392.86

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Solution

The fourth proportional to 877,421,123.36, 1,316,131,605.14 and 386,134,392.86 is: 579,201,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,421,123.36 : 1,316,131,605.14 = 386,134,392.86 : x
  2. Step 2: Convert to fraction form
    877,421,123.36/1,316,131,605.14 = 386,134,392.86/x
  3. Step 3: Cross multiply
    877,421,123.36x = 1,316,131,605.14 × 386,134,392.86
  4. Step 4: Simplify right side
    877,421,123.36x = 508,203,678,274,591,232
  5. Step 5: Solve for x
    x = 508,203,678,274,591,232/877,421,123.36
  6. Step 6: Final answer
    x = 579,201,554.13

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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.