Home / 390,027,457.12-584,871,103.44-147,520,300

Finding the Fourth Proportional to 390,027,457.12, 584,871,103.44 and 147,520,300

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Solution

The fourth proportional to 390,027,457.12, 584,871,103.44 and 147,520,300 is: 221,216,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,027,457.12 : 584,871,103.44 = 147,520,300 : x
  2. Step 2: Convert to fraction form
    390,027,457.12/584,871,103.44 = 147,520,300/x
  3. Step 3: Cross multiply
    390,027,457.12x = 584,871,103.44 × 147,520,300
  4. Step 4: Simplify right side
    390,027,457.12x = 86,280,360,640,799,840
  5. Step 5: Solve for x
    x = 86,280,360,640,799,840/390,027,457.12
  6. Step 6: Final answer
    x = 221,216,119.70

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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.