Home / 290,442,206.40-435,755,406.86-103,692,142.84

Finding the Fourth Proportional to 290,442,206.40, 435,755,406.86 and 103,692,142.84

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Solution

The fourth proportional to 290,442,206.40, 435,755,406.86 and 103,692,142.84 is: 155,571,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,442,206.40 : 435,755,406.86 = 103,692,142.84 : x
  2. Step 2: Convert to fraction form
    290,442,206.40/435,755,406.86 = 103,692,142.84/x
  3. Step 3: Cross multiply
    290,442,206.40x = 435,755,406.86 × 103,692,142.84
  4. Step 4: Simplify right side
    290,442,206.40x = 45,184,411,891,429,440
  5. Step 5: Solve for x
    x = 45,184,411,891,429,440/290,442,206.40
  6. Step 6: Final answer
    x = 155,571,094.34

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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.