Home / 528,771,205.80-793,156,808.70-518,021,663.40

Finding the Fourth Proportional to 528,771,205.80, 793,156,808.70 and 518,021,663.40

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Solution

The fourth proportional to 528,771,205.80, 793,156,808.70 and 518,021,663.40 is: 777,032,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,771,205.80 : 793,156,808.70 = 518,021,663.40 : x
  2. Step 2: Convert to fraction form
    528,771,205.80/793,156,808.70 = 518,021,663.40/x
  3. Step 3: Cross multiply
    528,771,205.80x = 793,156,808.70 × 518,021,663.40
  4. Step 4: Simplify right side
    528,771,205.80x = 410,872,409,379,809,600
  5. Step 5: Solve for x
    x = 410,872,409,379,809,600/528,771,205.80
  6. Step 6: Final answer
    x = 777,032,495.10

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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.