Home / 157,031,870.40-235,585,130.40-66,108,657.60

Finding the Fourth Proportional to 157,031,870.40, 235,585,130.40 and 66,108,657.60

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Solution

The fourth proportional to 157,031,870.40, 235,585,130.40 and 66,108,657.60 is: 99,178,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031,870.40 : 235,585,130.40 = 66,108,657.60 : x
  2. Step 2: Convert to fraction form
    157,031,870.40/235,585,130.40 = 66,108,657.60/x
  3. Step 3: Cross multiply
    157,031,870.40x = 235,585,130.40 × 66,108,657.60
  4. Step 4: Simplify right side
    157,031,870.40x = 15,574,216,721,264,952
  5. Step 5: Solve for x
    x = 15,574,216,721,264,952/157,031,870.40
  6. Step 6: Final answer
    x = 99,178,699.72

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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.