Home / 115,168,547.40-172,416,897.90-103,075,312.20

Finding the Fourth Proportional to 115,168,547.40, 172,416,897.90 and 103,075,312.20

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Solution

The fourth proportional to 115,168,547.40, 172,416,897.90 and 103,075,312.20 is: 154,312,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,168,547.40 : 172,416,897.90 = 103,075,312.20 : x
  2. Step 2: Convert to fraction form
    115,168,547.40/172,416,897.90 = 103,075,312.20/x
  3. Step 3: Cross multiply
    115,168,547.40x = 172,416,897.90 × 103,075,312.20
  4. Step 4: Simplify right side
    115,168,547.40x = 17,771,925,579,598,026
  5. Step 5: Solve for x
    x = 17,771,925,579,598,026/115,168,547.40
  6. Step 6: Final answer
    x = 154,312,318.60

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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.