Home / 139,066,311.40-208,598,430.30-42,021,831.40

Finding the Fourth Proportional to 139,066,311.40, 208,598,430.30 and 42,021,831.40

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Solution

The fourth proportional to 139,066,311.40, 208,598,430.30 and 42,021,831.40 is: 63,032,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,066,311.40 : 208,598,430.30 = 42,021,831.40 : x
  2. Step 2: Convert to fraction form
    139,066,311.40/208,598,430.30 = 42,021,831.40/x
  3. Step 3: Cross multiply
    139,066,311.40x = 208,598,430.30 × 42,021,831.40
  4. Step 4: Simplify right side
    139,066,311.40x = 8,765,688,068,371,252
  5. Step 5: Solve for x
    x = 8,765,688,068,371,252/139,066,311.40
  6. Step 6: Final answer
    x = 63,032,433.81

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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.