Finding the Fourth Proportional to 390,855,779.06, 586,282,389.80 and 141,860,704.54
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Solution
The fourth proportional to 390,855,779.06, 586,282,389.80 and 141,860,704.54 is: 212,790,592.68
Step by Step Solution
- Step 1: Write the proportion equation
390,855,779.06 : 586,282,389.80 = 141,860,704.54 : x - Step 2: Convert to fraction form
390,855,779.06/586,282,389.80 = 141,860,704.54/x - Step 3: Cross multiply
390,855,779.06x = 586,282,389.80 × 141,860,704.54 - Step 4: Simplify right side
390,855,779.06x = 83,170,432,877,045,664 - Step 5: Solve for x
x = 83,170,432,877,045,664/390,855,779.06 - Step 6: Final answer
x = 212,790,592.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.