Home / 287,237,779.65-430,917,200.78-93,134,061.45

Finding the Fourth Proportional to 287,237,779.65, 430,917,200.78 and 93,134,061.45

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Solution

The fourth proportional to 287,237,779.65, 430,917,200.78 and 93,134,061.45 is: 139,720,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,237,779.65 : 430,917,200.78 = 93,134,061.45 : x
  2. Step 2: Convert to fraction form
    287,237,779.65/430,917,200.78 = 93,134,061.45/x
  3. Step 3: Cross multiply
    287,237,779.65x = 430,917,200.78 × 93,134,061.45
  4. Step 4: Simplify right side
    287,237,779.65x = 40,133,069,056,840,840
  5. Step 5: Solve for x
    x = 40,133,069,056,840,840/287,237,779.65
  6. Step 6: Final answer
    x = 139,720,718.86

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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.