Home / 129,637,799.16-178,899,762.51-70,098,678.55

Finding the Fourth Proportional to 129,637,799.16, 178,899,762.51 and 70,098,678.55

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Solution

The fourth proportional to 129,637,799.16, 178,899,762.51 and 70,098,678.55 is: 96,735,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637,799.16 : 178,899,762.51 = 70,098,678.55 : x
  2. Step 2: Convert to fraction form
    129,637,799.16/178,899,762.51 = 70,098,678.55/x
  3. Step 3: Cross multiply
    129,637,799.16x = 178,899,762.51 × 70,098,678.55
  4. Step 4: Simplify right side
    129,637,799.16x = 12,540,636,945,083,454
  5. Step 5: Solve for x
    x = 12,540,636,945,083,454/129,637,799.16
  6. Step 6: Final answer
    x = 96,735,959.93

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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.