Home / 128,860,368.49-177,827,334.83-70,913,616.49

Finding the Fourth Proportional to 128,860,368.49, 177,827,334.83 and 70,913,616.49

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Solution

The fourth proportional to 128,860,368.49, 177,827,334.83 and 70,913,616.49 is: 97,860,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,860,368.49 : 177,827,334.83 = 70,913,616.49 : x
  2. Step 2: Convert to fraction form
    128,860,368.49/177,827,334.83 = 70,913,616.49/x
  3. Step 3: Cross multiply
    128,860,368.49x = 177,827,334.83 × 70,913,616.49
  4. Step 4: Simplify right side
    128,860,368.49x = 12,610,379,423,573,440
  5. Step 5: Solve for x
    x = 12,610,379,423,573,440/128,860,368.49
  6. Step 6: Final answer
    x = 97,860,805.24

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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.