Home / 219,140,565-302,423,485.86-121,355,421

Finding the Fourth Proportional to 219,140,565, 302,423,485.86 and 121,355,421

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Solution

The fourth proportional to 219,140,565, 302,423,485.86 and 121,355,421 is: 167,475,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,140,565 : 302,423,485.86 = 121,355,421 : x
  2. Step 2: Convert to fraction form
    219,140,565/302,423,485.86 = 121,355,421/x
  3. Step 3: Cross multiply
    219,140,565x = 302,423,485.86 × 121,355,421
  4. Step 4: Simplify right side
    219,140,565x = 36,700,729,446,827,848
  5. Step 5: Solve for x
    x = 36,700,729,446,827,848/219,140,565
  6. Step 6: Final answer
    x = 167,475,745.29

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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.