Home / 156,233,748.96-215,602,184.16-86,617,337.76

Finding the Fourth Proportional to 156,233,748.96, 215,602,184.16 and 86,617,337.76

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Solution

The fourth proportional to 156,233,748.96, 215,602,184.16 and 86,617,337.76 is: 119,531,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,233,748.96 : 215,602,184.16 = 86,617,337.76 : x
  2. Step 2: Convert to fraction form
    156,233,748.96/215,602,184.16 = 86,617,337.76/x
  3. Step 3: Cross multiply
    156,233,748.96x = 215,602,184.16 × 86,617,337.76
  4. Step 4: Simplify right side
    156,233,748.96x = 18,674,887,207,180,444
  5. Step 5: Solve for x
    x = 18,674,887,207,180,444/156,233,748.96
  6. Step 6: Final answer
    x = 119,531,710.22

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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.