Home / 517,804,982.79-776,702,158.86-299,316,301.67

Finding the Fourth Proportional to 517,804,982.79, 776,702,158.86 and 299,316,301.67

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Solution

The fourth proportional to 517,804,982.79, 776,702,158.86 and 299,316,301.67 is: 448,971,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,804,982.79 : 776,702,158.86 = 299,316,301.67 : x
  2. Step 2: Convert to fraction form
    517,804,982.79/776,702,158.86 = 299,316,301.67/x
  3. Step 3: Cross multiply
    517,804,982.79x = 776,702,158.86 × 299,316,301.67
  4. Step 4: Simplify right side
    517,804,982.79x = 232,479,617,685,196,544
  5. Step 5: Solve for x
    x = 232,479,617,685,196,544/517,804,982.79
  6. Step 6: Final answer
    x = 448,971,379.98

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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.