Home / 13,119,379,931.34-18,117,248,206.67-12,404,644,478.93

Finding the Fourth Proportional to 13,119,379,931.34, 18,117,248,206.67 and 12,404,644,478.93

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Solution

The fourth proportional to 13,119,379,931.34, 18,117,248,206.67 and 12,404,644,478.93 is: 17,130,232,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119,379,931.34 : 18,117,248,206.67 = 12,404,644,478.93 : x
  2. Step 2: Convert to fraction form
    13,119,379,931.34/18,117,248,206.67 = 12,404,644,478.93/x
  3. Step 3: Cross multiply
    13,119,379,931.34x = 18,117,248,206.67 × 12,404,644,478.93
  4. Step 4: Simplify right side
    13,119,379,931.34x = 224,738,022,940,120,842,240
  5. Step 5: Solve for x
    x = 224,738,022,940,120,842,240/13,119,379,931.34
  6. Step 6: Final answer
    x = 17,130,232,077.76

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1.5x scale

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.