Home / 514,535,280.40-710,057,141.04-279,586,657.72

Finding the Fourth Proportional to 514,535,280.40, 710,057,141.04 and 279,586,657.72

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Solution

The fourth proportional to 514,535,280.40, 710,057,141.04 and 279,586,657.72 is: 385,828,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,535,280.40 : 710,057,141.04 = 279,586,657.72 : x
  2. Step 2: Convert to fraction form
    514,535,280.40/710,057,141.04 = 279,586,657.72/x
  3. Step 3: Cross multiply
    514,535,280.40x = 710,057,141.04 × 279,586,657.72
  4. Step 4: Simplify right side
    514,535,280.40x = 198,522,502,853,592,256
  5. Step 5: Solve for x
    x = 198,522,502,853,592,256/514,535,280.40
  6. Step 6: Final answer
    x = 385,828,747.64

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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.