Finding the Fourth Proportional to 1,989,849,604,519.70, 2,984,774,406,779.50 and 985,655,697,031.65
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Solution
The fourth proportional to 1,989,849,604,519.70, 2,984,774,406,779.50 and 985,655,697,031.65 is: 1,478,483,545,547.45
Step by Step Solution
- Step 1: Write the proportion equation
1,989,849,604,519.70 : 2,984,774,406,779.50 = 985,655,697,031.65 : x - Step 2: Convert to fraction form
1,989,849,604,519.70/2,984,774,406,779.50 = 985,655,697,031.65/x - Step 3: Cross multiply
1,989,849,604,519.70x = 2,984,774,406,779.50 × 985,655,697,031.65 - Step 4: Simplify right side
1,989,849,604,519.70x = 2,941,959,898,396,478,027,071,488 - Step 5: Solve for x
x = 2,941,959,898,396,478,027,071,488/1,989,849,604,519.70 - Step 6: Final answer
x = 1,478,483,545,547.45
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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.