Home / 287,237,779.40-430,917,200.40-93,134,061.20

Finding the Fourth Proportional to 287,237,779.40, 430,917,200.40 and 93,134,061.20

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Solution

The fourth proportional to 287,237,779.40, 430,917,200.40 and 93,134,061.20 is: 139,720,718.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,237,779.40 : 430,917,200.40 = 93,134,061.20 : x
  2. Step 2: Convert to fraction form
    287,237,779.40/430,917,200.40 = 93,134,061.20/x
  3. Step 3: Cross multiply
    287,237,779.40x = 430,917,200.40 × 93,134,061.20
  4. Step 4: Simplify right side
    287,237,779.40x = 40,133,068,914,186,264
  5. Step 5: Solve for x
    x = 40,133,068,914,186,264/287,237,779.40
  6. Step 6: Final answer
    x = 139,720,718.49

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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.