Home / 528,145,900.80-790,427,260.80-463,648,646.40

Finding the Fourth Proportional to 528,145,900.80, 790,427,260.80 and 463,648,646.40

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Solution

The fourth proportional to 528,145,900.80, 790,427,260.80 and 463,648,646.40 is: 693,900,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,145,900.80 : 790,427,260.80 = 463,648,646.40 : x
  2. Step 2: Convert to fraction form
    528,145,900.80/790,427,260.80 = 463,648,646.40/x
  3. Step 3: Cross multiply
    528,145,900.80x = 790,427,260.80 × 463,648,646.40
  4. Step 4: Simplify right side
    528,145,900.80x = 366,480,529,547,579,712
  5. Step 5: Solve for x
    x = 366,480,529,547,579,712/528,145,900.80
  6. Step 6: Final answer
    x = 693,900,168.48

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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.