Home / 28,077,475,466.40-42,116,210,642.16-12,356,300,091.12

Finding the Fourth Proportional to 28,077,475,466.40, 42,116,210,642.16 and 12,356,300,091.12

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Solution

The fourth proportional to 28,077,475,466.40, 42,116,210,642.16 and 12,356,300,091.12 is: 18,534,449,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,475,466.40 : 42,116,210,642.16 = 12,356,300,091.12 : x
  2. Step 2: Convert to fraction form
    28,077,475,466.40/42,116,210,642.16 = 12,356,300,091.12/x
  3. Step 3: Cross multiply
    28,077,475,466.40x = 42,116,210,642.16 × 12,356,300,091.12
  4. Step 4: Simplify right side
    28,077,475,466.40x = 520,400,537,395,350,798,336
  5. Step 5: Solve for x
    x = 520,400,537,395,350,798,336/28,077,475,466.40
  6. Step 6: Final answer
    x = 18,534,449,011.21

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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.