Home / 153,463,733.10-211,873,801.95-99,869,463.18

Finding the Fourth Proportional to 153,463,733.10, 211,873,801.95 and 99,869,463.18

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Solution

The fourth proportional to 153,463,733.10, 211,873,801.95 and 99,869,463.18 is: 137,880,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,463,733.10 : 211,873,801.95 = 99,869,463.18 : x
  2. Step 2: Convert to fraction form
    153,463,733.10/211,873,801.95 = 99,869,463.18/x
  3. Step 3: Cross multiply
    153,463,733.10x = 211,873,801.95 × 99,869,463.18
  4. Step 4: Simplify right side
    153,463,733.10x = 21,159,722,862,652,136
  5. Step 5: Solve for x
    x = 21,159,722,862,652,136/153,463,733.10
  6. Step 6: Final answer
    x = 137,880,934.05

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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.